After she had joined the African Church in Church street, and during her membership there, she frequently attended Mr. Latourette's meetings, at one of which, Mr. Smith invited her to go to a prayer-meeting, or to instruct the girls at the Magdalene Asylum, Bowery Hill, then under the protection of Mr. Pierson, and some other persons, chiefly respectable females. To reach the Asylum, Isabella called on Katy, Mr. Pierson's colored servant, of whom she had some knowledge. Mr. Pierson saw her there, conversed with her, asked her if she had been baptized, and was answered, characteristically, 'by the Holy Ghost.' After this, Isabella saw Katy several times, and occasionally Mr. Pierson, who engaged her to keep his house while Katy went to Virginia to see her children. This engagement was considered an answer to a prayer by Mr. Pierson, who had both fasted and prayed on the subject, while Katy and Isabella appeared to see in it the hand of God.
Mr. Pierson was characterized by a strong devotional spirit, which finally became highly fanatical. He assumed the title of Prophet, asserting that God had called him in an omnibus, in these words:-'Thou are Elijah, the Tishbite. Gather unto me all the members of Israel at the foot of Mount Carmel'; which he understood as meaning the gathering of his friends at Bowery Hill. Not long afterward, he became acquainted with the notorious Matthias, whose career was as extraordinary as it was brief. Robert Matthews, or Matthias (as he was usually called), was of Scotch extraction, but a native of Washington County, New York, and at that time about forty-seven years of age. He was religiously brought up, among the Anti-Burghers, a sect of Presbyterians; the clergyman, the Rev. Mr. Bevridge, visiting the family after the manner of the church, and being pleased with Robert, put his hand on his head, when a boy, and pronounced a blessing, and this blessing, with his natural qualities, determined his character; for he ever after thought he should be a distinguished man. Matthias was brought up a farmer till nearly eighteen years of age, but acquired indirectly the art of a carpenter, without any regular apprenticeship, and showed considerable mechanical skill. He obtained property from his uncle, Robert Thompson, and then he went into business as a store-keeper, was considered respectable, and became a member of the Scotch Presbyterian Church. He married in 1813, and continued in business in Cambridge. In 1816, he ruined himself by a building speculation, and the derangement of the currency which denied bank facilities, and soon after he came to New York with his family, and worked at his trade. He afterwards removed to Albany, and became a hearer at the Dutch Reformed Church, then under Dr. Ludlow's charge. He was frequently much excited on religious subjects.
In 1829, he was well known, if not for street preaching, for loud discussions and pavement exhortations, but he did not make set sermons. In the beginning of 1830, he was only considered zealous; but in the same year he prophesied the destruction of the Albanians and their capital, and while preparing to shave, with the Bible before him, he suddenly put down the soap and exclaimed, 'I have found it! I have found a text which proves that no man who shaves his beard can be a true Christian;' and shortly afterwards, without shaving, he went to the Mission House to deliver an address which he had promised, and in this address, he proclaimed his new character, pronounced vengeance on the land, and that the law of God was the only rule of government, and that he was commanded to take possession of the world in the name of the King of kings. His harangue was cut short by the trustees putting out the lights. About this time, Matthias laid by his implements of industry, and in June, he advised his wife to fly with him from the destruction which awaited them in the city; and on her refusal, partly on account of Matthias calling himself a Jew, whom she was unwilling to retain as a husband, he left her, taking some of the children to his sister in Argyle, forty miles from Albany. At Argyle he entered the church and interrupted the minister, declaring the congregation in darkness, and warning them to repentance. He was, of course, taken out of the church, and as he was advertised in the Albany papers, he was sent back to his family. His beard had now obtained a respectable length, and thus he attracted attention, and easily obtained an audience in the streets. For this he was sometimes arrested, once by mistake for Adam Paine, who collected the crowd, and then left Matthias with it on the approach of the officers. He repeatedly urged his wife to accompany him on a mission to convert the world, declaring that food could be obtained from the roots of the forest, if not administered otherwise. At this time he assumed the name of Matthias, called himself a Jew, and set out on a mission, taking a western course, and visiting a brother at Rochester, a skillful mechanic, since dead. Leaving his brother, he proceeded on his mission over the Northern States, occasionally returning to Albany.
After visiting Washington, and passing through Pennsylvania, he came to New York. His appearance at that time was mean, but grotesque, and his sentiments were but little known.
On May the 5th, 1832, he first called on Mr. Pierson, in Fourth street, in his absence. Isabella was alone in the house, in which she had lived since the previous autumn. On opening the door, she, for the first time, beheld Matthias, and her early impression of seeing Jesus in the flesh rushed to her mind. She heard his inquiry, and invited him into the parlor; and being naturally curious, and much excited, and possessing a good deal of tact, she drew him into conversation, stated her own opinions, and heard his replies and explanations. Her faith was at first staggered by his declaring himself a Jew; but on this point she was relieved by his saying, 'Do you not remember how Jesus prayed?' and repeated part of the Lord's Prayer, in proof that the Father's kingdom was to come, and not the Son's. She then understood him to be a converted Jew, and in the conclusion she says she 'felt as if God had sent him to set up the kingdom.' Thus Matthias at once secured the good will of Isabella, and we may supposed obtained from her some information in relation to Mr. Pierson, especially that Mrs. Pierson declared there was no true church, and approved of Mr. Pierson's preaching. Matthias left the house, promising to return on Saturday evening. Mr. P. at this time had not seen Matthias.
Isabella, desirous of hearing the expected conversation between Matthias and Mr. Pierson on Saturday, hurried her work, got it finished, and was permitted to be present. Indeed, the sameness of belief made her familiar with her employer, while her attention to her work, and characteristic faithfulness, increased his confidence. This intimacy, the result of holding the same faith, and the principle afterwards adopted of having but one table, and all things in common, made her at once the domestic and the equal, and the depositary of very curious, if not valuable information. To this object, even her color assisted. Persons who have traveled in the South know the manner in which the colored people, and especially slaves, are treated; they are scarcely regarded as being present. This trait in our American character has been frequently noticed by foreign travelers. One English lady remarks that she discovered, in course of conversation with a Southern married gentleman, that a colored girl slept in his bedroom, in which also was his wife; and when he saw that it occasioned some surprise, he remarked, 'What would he do if he wanted a glass of water in the night?' Other travelers have remarked that the presence of colored people never seemed to interrupt a conversation of any kind for one moment. Isabella, then, was present at the first interview between Matthias and Pierson. At this interview, Mr. Pierson asked Matthias if he had a family, to which he replied in the affirmative; he asked him about his beard, and he gave a scriptural reason, asserting also that the Jews did not shave, and that Adam had a beard. Mr. Pierson detailed to Matthias his experience, and Matthias gave his, and they mutually discovered that they held the same sentiments, both admitting the direct influence of the Spirit, and the transmission of spirits from one body to another. Matthias admitted the call of Mr. Pierson, in the omnibus in Wall street, which, on this occasion, he gave in these words:-'Thou art Elijah the Tishbite, and thou shalt go before me in the spirit and power of Elias, to prepare my way before me.' And Mr. Pierson admitted Matthias' call, who completed his declaration on the 20th of June, in Argyle, which, by a curious coincidence, was the very day on which Pierson had received his call in the omnibus. Such singular coincidences have a powerful effect on excited minds. From that discovery, Pierson and Matthias rejoiced in each other, and became kindred spirits-Matthias, however, claiming to be the Father, or to possess the spirit of the Father-he was God upon the earth, because the spirit of God dwelt in him; while Pierson then understood that his mission was like that of John the Baptist, which the name Elias meant. This conference ended with an invitation to supper, and Matthias and Pierson washing each other's feet. Mr. Pierson preached on the following Sunday, but after which, he declined in favor of Matthias, and some of the party believed that the 'kingdom had then come.'
As a specimen of Matthias' preaching and sentiments, the following is said to be reliable:
'The spirit that built the Tower of Babel is now in the world-it is the spirit of the devil. The spirit of man never goes upon the clouds; all who think so are Babylonians. The only heaven is on earth. All who are ignorant of truth are Ninevites. The Jews did not crucify Christ- it was the Gentiles. Every Jew has his guardian angel attending him in this world. God don't speak through preachers; he speaks through me, his prophet.
' " John the Baptist," (addressing Mr. Pierson), "read the tenth chapter of Revelations." After the reading of the chapter, the prophet resumed speaking, as follows:-
'Ours is the mustard-seed kingdom which is to spread all over the earth. Our creed is truth, and no man can find truth unless he obeys John the Baptist, and comes clean into the church.