Why should Columba, he asked himself resentfully, be loved and privileged above all the other scholars? He was the son of the Prince of Tir-Connell it was true, but in a monastic community such as Clonard were not they all equal before God? He began to be jealous of the influence exercised so unconsciously by his young companion, and harboured bitterness in his heart. Ciaran's guardian angel grieved over the havoc that was being wrought in that pure and gentle soul. He appeared to him one day in a radiant vision, carrying the tools of a carpenter in his hands.
"See, Ciaran," said he, "what thou hast left for the love of God, to give thyself to Christ in the monastic life; but Columba has sacrificed the throne which would have been his, had he not, forsaking the world, chosen rather to follow his Lord in poverty and humiliation."
His words scattered the mist of envy from the heart of the carpenter's son, who humbly asked pardon for his sin. From henceforth he became one of the warmest friends of Columba, who in his turn loved the gentle-hearted Ciaran with a true and tender affection. It was while the two were at Clonard together that their master St. Finnian dreamt that he saw two moons, one of gold and one of silver, shining in the sky. The golden moon illuminated the north of Ireland, and its beams shone over the sea as far as distant Alba, while the moon of silver shed its soft light in the centre of the land. It was made known to Finnian that the golden moon represented Columba, who was to carry the light of the Gospel to another people, while that of silver typified Ciaran, whose holiness was to be a light to many in his own country.
It was at this time that Columbcille showed the first signs of that gift of prophecy that was to make him so famous in after days.
There came to Clonard an old bard called Gemman, who was a Christian. Columba, who had a passionate love for poetry, put himself under his tuition that he might not only study the old minstrel lore of Ireland, but learn also to pour out his own heart in song. One day when the old man sat reading at a little distance from his pupil in the green meadows near Clonard, a young maiden, crying piteously for help, and hotly pursued by one of the bloodthirsty barbarians who were the terror of the more peaceful inhabitants of the country, fled towards him for protection. Gemman called to Columba for help, but it was too late. Even as he tried to hide the child under the folds of his long cloak her savage assailant pierced her to the heart with his spear.
"How long, O Lord," moaned the old man, as he gathered the body of the little maiden into his arms, "how long shall the blood of this innocent cry unavenged to heaven?"
Columba turned to him with flashing eyes.
"Thus long," he cried in a voice that rang like the trumpet of the avenging angel:
"Thus long, and no longer. The soul of that innocent child shall scarcely have entered heaven before the soul of her murderer shall be cast into eternal fire."
The words had scarcely left his lips when the barbarian, who was not yet out of sight, fell dead, struck down by the sudden judgment of God.