'Reward' in the Bible

Look, the sovereign Lord comes as a victorious warrior; his military power establishes his rule. Look, his reward is with him; his prize goes before him.

But I thought, "I have worked in vain; I have expended my energy for absolutely nothing." But the Lord will vindicate me; my God will reward me.

Look, the Lord announces to the entire earth: "Say to Daughter Zion, 'Look, your deliverer comes! Look, his reward is with him and his reward goes before him!'"