William Barclay's Daily Study Bible - James 5:12
5:12 Above all things, my brothers, do not swear, neither by heaven nor by earth nor by any other oath. Let your yes be a simple yes and your no a simple no, lest you fall under judgment. James is repeating the teaching of Jesus in the Sermon on the Mount ( Matthew 5:33-37 ), teaching which was very necessary in the days of the early church. James is not thinking of what we call bad language but of confirming a statement or a promise or an undertaking by an oath. In the ancient world,... read more
Matthew Henry's Complete Commentary - James 5:12-20
This epistle now drawing to a close, the penman goes off very quickly from one thing to another: hence it is that matters so very different are insisted on in these few verses. I. The sin of swearing is cautioned against: But above all things, my brethren, swear not, etc., Jas. 5:12. Some understand this too restrictedly, as if the meaning were, ?Swear not at your persecutors, at those that reproach you and say all manner of evil of you; be not put into a passion by the injuries they do you,... read more