Commentaries
138:1-5 When we can praise God with our whole heart, we need not be unwilling for the whole world to witness our gratitude and joy in him. Those who rely on his loving-kindness and truth through Jesus Christ, will ever find him faithful to his word. If he spared not his own Son, how shall he not with him freely give us all things? If God gives us strength in our souls, to bear the burdens, resist the temptations, and to do the duties of an afflicted state, if he strengthens us to keep hold of himself by faith, and to wait with patience for the event, we are bound to be thankful.
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).