“Declare me innocent, O God! Defend me against these ungodly people. Rescue me from these unjust liars. For You are God, my only safe haven. Why have You tossed me aside? Why must I wander around in grief, oppressed by my enemies? Send out Your light and Your truth; let them guide me. Let them lead me to Your holy mountain, to the place where you live. There I will go to the altar of God, to God—the source of all my joy. I will praise You with my harp, O God, my God!” (Psalms 43:1-4, NLT)
David wanted justice against those who did evil to him, but wasn’t satisfied to make empty cries to God for help. No, not at all. He knew the path he needed to take. He was aware that much more than prayers and request were needed if he wanted justice to be done. He would have to act out his faith in a living and down-to-earth manner. This is why he said he would go to the altar, and that it was his source of joy.
Many seek justice and yet run away from the altar, because the altar is not a source of joy for them, but a burden. And so they never see justice. In fact, they’re humiliated and treated unjustly and have no one to defend them, because the justice of God is only achieved through faith, and faith does not exist apart from the altar!