But may we swear an oath by the Name of God in a godly manner?

#HC101

Yes, when the government demands it of its subjects, or when necessity requires it, in order to maintain and promote fidelity and truth, to God’s glory and for our neighbour’s good. Such oath-taking is based on God’s Word and was therefore rightly used by saints in the Old and the New Testament.

Proofs

Yes, when the government demands it of its subjects, or when necessity requires it, in order to maintain and promote fidelity and truth, to God’s glory and for our neighbour’s good. Such oath-taking is based on God’s Word (Deuteronomy 6:13; Deuteronomy 10:20; Jeremiah 4:1–2; Hebrews 6:16)
and was therefore rightly used by saints in the Old and the New Testament. (Genesis 21:24; Genesis 31:53; Joshua 9:15; 1 Samuel 24:22; 1 Kings 1:29–30; Romans 1:9; 2 Corinthians 1:23)