After having expressed his request that Hashem intervene to save mankind from destruction and articulated his conviction that Hashem apportions to each man according to his needs, Assaf speaks of his own obligation. "But as for me, I shall declare it forever, I will sing praises to the G-D of Jacob. I shall cut down all the horns of the lawless, so that the horn of the righteous may rise up (Psalm 75:10-11)." Rav Hirsch comments that Assaf wishes to proclaim those universal truths that have been revealed to the children of Jacob. Whenever we feel that we are the descendants of Jacob, in exile and oppressed, we must recall the "G-D of Jacob" and sing praises to Him. For the G-D of Jacob has brought us forth from exile and performed wonders on our behalf. Therefore, Assaf commits to singing of Him. His song celebrates the downfall of the wicked and the ascent of the righteous. Assaf reminds us to take the long-term view and trust that Hashem will lead us from exile, just as He redeemed our forefather Jacob.