Matthew 23:18

And [you say], whoever takes an oath 'by the Altar,' it does not [really] mean anything, but whoever takes an oath 'by the gift on the Altar,' he is obligated to [fulfill] the oath.

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 [you say], whoever takes an oath 'by the Altar,' it does not [really] mean anything, but whoever takes an oath 'by the gift on the Altar,' he is obligated to [fulfill] the oath.