"You shall fear the LORD your God; you shall serve him, and swear by his name."
-- Deuteronomy 6:13
"You shall fear the LORD your God; you shall serve him and cleave to him, and by his name you shall swear."
-- Deutermonomy 10:20
"Again you have heard that it was said to the men of old, 'You shall not swear falsely, but shall perform to the Lord what you have sworn.' But I say to you, Do not swear at all . . .."
-- Matthew 5:33f.
