Ps 138:1-8. David thanks God for His benefits, and anticipating a wider extension of God's glory by His means, assures himself of His continued presence and faithfulness.
1. I will praise thee with my whole heart--(Compare
before the gods--whether angels (Ps 8:5); or princes (Ex 21:6; Ps 82:6); or idols (Ps 97:7); denotes a readiness to worship the true God alone, and a contempt of all other objects of worship.
3-5. That promise, as an answer to his prayers in distress, revived and strengthened his faith; and, as the basis of other revelations of the Messiah, it will be the occasion of praise by all who hear and receive it (Ps 68:29, 31; Isa 4:3).
5. for great is the glory--or, "when the glory shall be great," in God's fulfilling His purposes of redemption.
8. God will fulfil His promise.