Exodus 34:6
5 The Lord descended in the cloud and stood with him there and proclaimed the Lord by name. 6 The Lord passed by before him and proclaimed: “The Lord, the Lord, the compassionate and gracious God, slow to anger, and abounding in loyal love and faithfulness, 7 keeping loyal love for thousands, forgiving iniquity and transgression and sin. But he by no means leaves the guilty unpunished, responding to the transgression of fathers by dealing with children and children’s children, to the third and fourth generation.” 8 Moses quickly bowed to the ground and worshiped 9 and said, “If now I have found favor in your sight, O Lord, let my Lord go among us, for we are a stiff-necked people; pardon our iniquity and our sin, and take us for your inheritance.”
Sirach 5:5
Ben Sira, Ecclesiasticus4 Do not say, "I sinned, yet what has happened to me?" for the Lord is slow to anger. 5 Do not be so confident of forgiveness that you add sin to sin. 6 Do not say, "His mercy is great, he will forgive the multitude of my sins," for both mercy and wrath are with him, and his anger will rest on sinners. 7 Do not delay to turn back to the Lord, and do not postpone it from day to day; for suddenly the wrath of the Lord will come upon you, and at the time of punishment you will perish.
Notes and References
"... Exodus 34:6–7 influenced the Hebrew Bible profoundly, and resemblances are found in many post-Biblical Jewish texts. (See: Wisdom of Solomon 15:1, Sirach 2:10-11, 5:5, 50:19, Baruch 2:27, 2 Baruch 77:7, etc...) It would not be surprising, then, if the New Testament follows this trajectory. While many words (and their synonyms) from YHWH’s revelation appear throughout the New Testament, it contains no extended quotations. Nevertheless, the texts with these lexical links may unconsciously allude to theologically loaded words in Exodus 34:6–7 ..."
Surls, Austin Making Sense of the Divine Name in the Book of Exodus: From Etymology to Literary Onomastics (pp. 194-195) Eisenbrauns, 2017