James 5:12
But above all things, my brethren, swear not, either by Heaven, or by earth, or by any other oath; but let yours be "the yes, yes," and "the no, no"; that ye fall not under condemnation.
Matthew 23:16-22
"Woe to you, blind guides, who say, 'Whosoever swears by the temple, it is nothing; but whosoever swears by the gold of the temple, he is a debtor!'
Matthew 5:33-37
"Again ye heard that it was said to the ancients, You shall not swear falsely, but shall perform to the Lord your oaths;"
Hebrews 6:16-17
For men swear by the greater; and the oath for confirmation is an end, to them, of every dispute:
Matthew 26:63-64
But Jesus was silent. And the high priest said to Him, "I adjure Thee by the living God, that Thou tell us whether Thou art the Christ, the Son of God"
2 Corinthians 1:23
But I invoke God as a witness upon my soul, that, as sparing you, I came not yet to Corinth.