Deuteronomy 10:20

20 Yahweh your God you shall fear; Him you shall serve, and to Him you shall ^acling, and by His name ^byou shall swear.

Matthew 5:34

34 But I say to you, ^amake no oath at all, either by heaven, for it is ^bthe throne of God,

37 But let your statement be, ‘Yes, yes’ or ‘No, no’; anything beyond these is ¹of ^athe evil one.