Deuteronomy 6:13

6:13 You must revere the Lord your God, serve him, and take oaths using only his name.

Psalms 63:11

63:11 But the king will rejoice in God;

everyone who takes oaths in his name will boast,

for the mouths of those who speak lies will be shut up.

Isaiah 45:23

45:23 I solemnly make this oath –

what I say is true and reliable:

‘Surely every knee will bow to me,

every tongue will solemnly affirm;