If we have forgotten the name of our God - That is, if we have apostatized from him.
Or stretched out our hands to a strange god - Or have been guilty of idolatry. The act of stretching out the hands, or spreading forth the hands, was significant of worship or prayer: 1Ki 8:22; 2 Chronicles 6:12-13; see the notes at Isaiah 1:15. The idea here is, that this was not the cause or reason of their calamities; that if this had occurred, it would have been a sufficient reason for what had taken place; but that no such cause actually existed, and therefore the reason must be found in something else. It was the fact of such calamities having come upon the nation when no such cause existed, that perplexed the author of the psalm, and led to the conclusion in his own mind Psalms 44:22 that these calamities were produced by the malignant designs of the enemies of the true religion, and that, instead of their suffering for their national sins, they were really martyrs in the cause of God, and were suffering for his sake.