12 and forgive us our debts, as we ourselves have forgiven our debtors. 13 And do not lead us into temptation, but deliver us from the evil one. 14 “For if you forgive others their sins, your heavenly Father will also forgive you. 15 But if you do not forgive others, your Father will not forgive you your sins. 16 “When you fast, do not look sullen like the hypocrites, for they make their faces unattractive so that people will see them fasting. I tell you the truth, they have their reward!
Shabbat 151bBabylonian Talmud
In a similar vein, the Gemara relates that Rabbi Ḥiyya said to his wife: When a poor person comes to the house, be quick to give him bread so that they will be quick to give bread to your children. She said to him: Are you cursing them, your children? He said to her: It is a verse that is written, as it says: “Due to this thing,” and the school of Rabbi Yishmael taught that it is a wheel that continuously turns in the world. Similarly, it was taught in a baraita that Rabbi Gamliel, son of Rabbi Yehuda HaNasi, says: The verse that states: “And He will show you mercy and have compassion on you and multiply you” (Deuteronomy 13:18) teaches us that anyone who has compassion for God’s creatures will receive compassion from Heaven, and anyone who does not have compassion for God’s creatures will not receive compassion from Heaven.
Notes and References
"... Even though an atom’s worth of good can be critical, some good deeds are worth more than others. There is a tradition attributed to Anas ibn Malik, a contemporary of the Prophet, who reports that Muhammad questioned one to whom he permitted a glimpse of heaven. When the one who had briefly seen these blessings begged to enter immediately, he was told the price of admission is “your forgiveness of your brother.” This saying illustrates the qur’anic verse “Fear God and make reconciliation amongst yourselves” (8:1). This follows, comments al-Ghazali, because “God reconciles the believers with one another” (203–4). The idea that forgiveness of one’s brother is the key to heaven in Islam recalls Micah 7:18 and the story of Rabbi Huna in Talmud Tractate Rosh Hashanah 17a, which states that humans earn divine forgiveness for themselves by forgiving the offenses of others. The Christian Scriptures also teach that God forgives as we forgive. (Rosh Hashanana 17a; See also Mark 11:25–26; Matthew 6:14–15) The power of forgiveness to alleviate postmortem discipline is a theme common to all three Abrahamic religions ..."
Bernstein, Alan E. Hell and Its Rivals: Death and Retribution among Christians, Jews, and Muslims in the Early Middle Ages (p. 340) Cornell University Press, 2017