Werset 3.413.13.23.33.43.53.63.73.83.93.103.113.123.133.143.153.163.173.183.193.203.213.223.233.243.253.263.273.283.293.303.313.323.333.343.353.363.373.383.393.403.413.423.43

Therefore, O best of the Bharatas (Arjuna), controlling the senses first, do thou kill this sinful thing, the destroyer of knowledge and realisation.

Therefore, best of the Bharatas, first bring the senses under control, and then strike down this evil, the destroyer of knowledge and realisation.

Having shown where desire is entrenched, Krishna tells Arjuna how to begin the fight against it: start with the senses. Once these are controlled, desire can be destroyed. Krishna calls it the destroyer of jñāna and vijñāna, which many render as knowledge and realisation, or theoretical understanding and direct experience. The military language, strike down this enemy, is fitting for a warrior. Krishna is giving Arjuna a battle more important than the one on the field, though the two are not unrelated.