James 5:12
But above all things, my brethren, swear not, either by heaven, or by the earth, or with any other oath: but let your yes, be yes, and your no, be no, lest you fall into condemnation.
Matthew 23:16-22
Alas for you, blind guides! who say, Whoever shall swear by the temple, it is nothing; but whoever shall swear by the gold of the temple, becomes a debtor.
Matthew 5:33-37
Again, you have heard that it was said to the ancients: You shall not swear falsely, but shall pay to the Lord your vows.
Hebrews 6:16-17
For, verily, men swear by the greater, and an oath for confirmation is to them an end of all contradiction.
Matthew 26:63-64
But Jesus remained silent. And the chief priest answered and said to him: I adjure you, by the living God, that you tell us whether you are the Christ, the Son of God?
2 Corinthians 1:23
But I call on God as a witness against my soul, that wishing to spare you, I did not go to Corinth;