The Heidelberg Catechism

Heidelberg Catechism Lords Day 37 – 102. Q. MAY WE SWEAR BY SAINTS OR OTHER CREATURES?

A. No. A legitimate oath means calling upon God as the one who knows my heart to witness to my truthfulness and to punish me if I swear falsely.1 No creature is worthy of such honor.2

Biblical References:

1 Rom. 9:1; 2 Cor. 1:23

2 Matt. 5:34-37; 23:16-22; James 5:12