James 5:12
But above all, my brethren, swear not; neither by heaven, nor by the earth, nor any other oath: but let your yea be yea, and your nay nay; that ye may not fall under condemnation.
Matthew 23:16-22
Wo unto you, ye blind guides, who say, If any one swear by the temple, it is nothing;
Matthew 5:33-37
Again, ye have heard, that it was said to the ancients, Thou shalt not forswear thyself, but shalt perform unto the Lord thine oaths:
Hebrews 6:16-17
For men swear by a greater Being, and an oath for confirmation is to them an end of all controversy.
Matthew 26:63-64
Then the high priest said to Him, I adjure thee by the living God, that thou tell us, if thou be the Christ, the Son of God.
2 Corinthians 1:23
But I call God to witness on my soul, that to spare you I came not as yet to Corinth: