BUT whosoever shall deny me before men him will I also deny before my Father which is in heaven.
Matthew 10:33.
IF thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved. For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.
Romans 10:9-10.
DAVID prayed, "O Lord, open thou my lips, and my mouth shall show forth thy praise."
Psalms 51:15.
Live so that you can say with the Psalmist.
I HAVE not hid thy righteousness within my heart; I have declared thy faithfulness and thy salvation: I have not concealed thy lovingkindness and thy truth from the great congregation.
Psalms 40:10.
FOR I am not ashamed of the gospel of Christ: for it is the power of God unto salvation to every one that believeth.