Matthew Henry on Judges 5:1-5

No time should be lost in returning thanks to the Lord for his mercies; for our praises are most acceptable, pleasant, and profitable, when they flow from a full heart. By this, love and gratitude would be more excited and more deeply fixed in the hearts of believers; the events would be more known and longer remembered. Whatever Deborah, Barak, or the army had done, the Lord must have all the praise. The will, the power, and the success were all from Him.