7 verses have
“back”
in Edition Clear Qur'an by Talal Itani / Aal-i-Imraan (The Family of Imraan)
3:23Have you not considered those who were given a share of the Scripture, as they were called to the Scripture of God to arbitrate between them; then some of them turned back, and declined?
3:75Among the People of the Book is he, who, if you entrust him with a heap of gold, he will give it back to you. And among them is he, who, if you entrust him with a single coin, he will not give it back to you, unless you keep after him. That is because they say, “We are under no obligation towards the gentiles.” They tell lies about God, and they know it.
3:149O you who believe! If you obey those who disbelieve, they will turn you back on your heels, and you end up losers.
3:154Then after the setback, He sent down security upon you. Slumber overcame some of you, while others cared only for themselves, thinking of God thoughts that were untrue—thoughts of ignorance—saying, “Is anything up to us?” Say, “Everything is up to God.” They conceal within themselves what they do not reveal to you. And they say, “If it was up to us, none of us would have been killed here.” Say, “Even if you Had stayed in your homes, those destined to be killed would have marched into their death beds.” God thus tests what is in your minds, and purifies what is in your hearts. God knows what the hearts contain.
3:155Those of you who turned back on the day when the two armies clashed—it was Satan who caused them to backslide, on account of some of what they have earned. But God has forgiven them. God is Forgiving and Prudent.
3:174So they came back with grace from God, and bounty, and no harm having touched them. They pursued what pleases God. God possesses immense grace.
3:187God received a pledge from those who were given the Scripture: “You shall proclaim it to the people, and not conceal it.” But they disregarded it behind their backs, and exchanged it for a small price. What a miserable exchange they made.
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Those who spend their wealth by night and day, privately and publicly, will receive their reward from their Lord. They have nothing to fear, nor shall they grieve.
The Holy Quran · Al-Baqara (The Cow) · 2:274