I will {f} freely sacrifice unto thee: I will praise thy name, O LORD; for it is good.

(f) For hypocrites serve God out of fear or on conditions.

Jamieson-Fausset-Brown Bible Commentary

6. I will freely, &c.-or, present a freewill offering (Le 7:16; Nu 15:3).

Matthew Henry's Concise Commentary

54:4-7 Behold, God is mine Helper. If we are for him, he is for us; and if he is for us, we need not fear. Every creature is that to us, and no more, which God makes it to be. The Lord will in due time save his people, and in the mean time he sustains them, and bears them up, so that the spirit he has made shall not fail. There is truth in God's threatenings, as well as in his promises; sinners that repent not, will find it so to their cost. David's present deliverance was an earnest of further deliverance. He speaks of the completion of his deliverance as a thing done, though he had as yet many troubles before him; because, having God's promise for it, he was as sure of it as if it was done already. The Lord would deliver him out of all his troubles. May he help us to bear our cross without repining, and at length bring us to share his victories and glory. Christians never should suffer the voice of praise and thanksgiving to cease in the church of the redeemed.