4.89 – seize them and kill them wherever you find them
The Quran uses the Arabic verb qatala five times to command killing. Two of those occurrences are in this sūra (vv. 89, 91). The reason for the commands seems to be that the “hypocrites” (v. 88) want the “believers” to reject faith. The Quran therefore calls the “believers” to kill the “hypocrites.”
“Wherever you find them” seems to suggest a wide-open attack (also in 9.5), but there are limits to the killing. Here the Quran says that if the “hypocrites” withdraw from the fighting and instead offer peace, the “believers” should stop fighting them (v. 90). The expression “their hearts restrained from fighting” (v. 90) suggests that not all those who heard the command to fight (vv. 74–77, 84) were convinced that this was the way of God.