Matthew 23:18

And again, Whosoever shall swear by the altar, it is nothing; but whosoever shall swear by the gift that is upon it, it is binding.

Treasury of Scripture Knowledge

Summary

If a man sin against his neighbour, and an oath be laid upon him to make him swear, and the oath come before thine altar in this house;

The oath

Bible References

The oath

Matthew 23:18
And again, Whosoever shall swear by the altar, it is nothing; but whosoever shall swear by the gift that is upon it, it is binding.