John Gills Exposition of the Bible Commentary - Psalms 149:8
To bind their kings with chains, and their nobles with fetters of iron. Which is thought to allude to what was done to the Canaanitish kings, in the times of Joshua; and to the princes of Midian by Gideon; and to Agag by Saul; and to the Ammonites, Syrians, and others, by David: but it refers either to the first times of the Gospel, and the influence of the sword of the Spirit over the hearts of men; and on some very great personages, as kings and nobles, brought to Christ and his churches,... read more
Matthew Henry's Complete Commentary - Psalms 149:6-9
The Israel of God are here represented triumphing over their enemies, which is both the matter of their praise (let them give to God the glory of those triumphs) and the recompence of their praise; those that are truly thankful to God for their tranquillity shall be blessed with victory. Or it may be taken as a further expression of their praise (Ps. 149:6): let the high praises of God be in their mouth, and then, in a holy zeal for his honour, let them take a two-edged sword in their hand, to... read more