"And bring me your mercy, Lord, your salvation, as you have promised. The same mercy you promised our ancestors. As it is said, 'You will give truth to Jacob and mercy to Abraham' (Micah 7:20). And so did Moses say, 'You have led with your mercy this people, whom you have redeemed' (Exodus 15:13).
Thus David said, 'Bring me your mercy, Lord' (Psalm 40:12). What is the mercy that you show us that you save us? And if you save us, I have something to say and answer to those who insult me, even though I am silent now, as it says, 'I am silent; I will not open my mouth, for you are the one who has done it' (Psalm 39:10). Your will is that I should answer them, as it says, 'Remove your affliction from me; by the force of your hand I am perishing' (Psalm 39:11).
That is why it is said, 'I will answer those who insult me' (Psalm 69:10). What are they insulting you about? As it says, 'Because for your sake I have borne reproach; shame has covered my face' (Psalm 69:8). And so it says, 'For I have eaten ashes like bread, and mingled my drink with tears, because of your indignation and wrath; for you have lifted me up and cast me down' (Psalm 102:10-11).
And they insult me, saying, 'Where is your God?' (Psalm 42:4). The Lord said to him, 'For my sake you are insulted, and I will remove your disgrace' (Isaiah 25:8). And so it says, 'In that day they will say, "Surely this is our God; we have waited for him, and he has saved us" ' (Isaiah 25:9). And the wicked who said, 'Where is your God?' will acknowledge and say, 'This is the Lord we have waited for; let us rejoice and be glad in his salvation.' "