Rejoice the soul of thy servant - Cause me to rejoice; to wit, by thy gracious interposition, and by delivering me from danger and death.
For unto thee, O Lord, do I lift up my soul - Compare the notes at Psalms 24:4. The idea is that of arousing himself, or exerting himself, as one does who makes strenuous efforts to obtain an object. He was not languid, or indifferent; he did not put forth merely weak and fitful efforts to find God, but he bent his whole powers to that end; he arouses himself thoroughly to seek the divine help. Languid and feeble efforts in seeking after God will be attended with no success. In so great a matter - when so much depends on the divine favor - when such great interests are at stake - the whole soul should be roused to one great and strenuous effort; not that we can obtain his favor by force or power, and not that any strength of ours will prevail of itself, but
(a) because nothing less will indicate the proper intensity of desire; and
(b) because such is his appointment in regard to the manner in which we are to seek his favor.
Compare Matthew 7:7-8; Luke 13:24; Luke 16:16.