3:103And hold fast to the rope of God, altogether, and do not become divided. And remember God’s blessings upon you; how you were enemies, and He reconciled your hearts, and by His grace you became brethren. And you were on the brink of a pit of fire, and He saved you from it. God thus clarifies His revelations for you, so that you may be guided.

3:156O you who believe! Do not be like those who disbelieved, and said of their brethren who marched in the land, or went on the offensive, “Had they stayed with us, they would not have died or been killed.” So that God may make it a cause of regret in their hearts. God gives life and causes death. God is Seeing of what you do.

3:168Those who said of their brethren, as they stayed behind, “Had they obeyed us, they would not have been killed.” Say, “Then avert death from yourselves, if you are truthful.”