As for God, His way is perfect; the word of the LORD is flawless. He is a shield to all who take refuge in Him.
Let us observe, in this song of praise, I. How David adores God, and gives him the glory of his infinite perfections. There is none like him, nor any to be compared with him (Sa2 22:32): Who is God, save the Lord? All others that are adored as deities are counterfeits and pretenders. None is to be relied on but he. Who is a rock, save our God?
Commenting on 2 Samuel 22:2-51
[As for] God, his way [is] perfect; the word of the LORD [is] tried: he [is] a buckler to all them that trust in him. (o) The manner that God uses to aid his own, never fails.
2Sa 22:31 He derives this confidence from the acts of God, and also from His word. האל (God) is written absolutely, like הצּוּר in Deu 32:4. The article points back to בּאלהי. Jehovah is the God (האל), whose way is perfect, without blemish; and His word is refined brass, pure silver (cf. Psa 12:7). He who trusts in Him is safe from all foes.