My lips shall greatly rejoice ... - My lips will seem to be happy in the privilege of celebrating the praises of God.
And my soul, which thou hast redeemed - Compare Psalms 34:22. The word soul here seems to be employed to denote “the soul” properly, as we understand the word - the immortal part. The usual meaning of the word, in the Psalms, however, is “life,” and it is possible that the psalmist meant merely to say here that the “life” which had been spared should find pleasure in celebrating the praises of God; but there is no impropriety in supposing that he has reference to his higher - his immortal - nature.