Ecclesiastes 5:4-6
When you vow a vow to God, defer not to pay it; for he has no pleasure in fools: pay that which you have vowed.
Topicalbible.org—AKJV

Matthew 5:37
But let your communication be, Yes, yes; No, no: for whatever is more than these comes of evil.
Topicalbible.org—AKJV

Matthew 5:34-37
But I say to you, Swear not at all; neither by heaven; for it is God's throne:
Topicalbible.org—AKJV

James 5:12
But above all things, my brothers, swear not, neither by heaven, neither by the earth, neither by any other oath: but let your yes be yes; and your no, no; lest you fall into condemnation.
Topicalbible.org—AKJV