We Love God!

God: "I looked for someone to take a stand for me, and stand in the gap" (Ezekiel 22:30)

Legalism is the tendency to regard as divine law things which God has neither required nor forbidden in Scripture and the corresponding inclination to look with suspicion on others for their failure or refusal to conform.
Sam Storms

Oath-taking is permitted, but it is not encouraged. In civil life, as in a courtroom, oath-taking is permitted. And when one is put under oath, he or she is not sinning against Christ’s teaching. Also, on rare occasions such a practice may be necessary, as it was for Paul. This said, oaths are not to be a part of everyday conversation. Christians should not need such devices. They should be known to be people of truth.
Kent Hughes