O you who believe! be not like those who disbelieve and say of their brethren when they travel in the earth or engage in fighting: Had they been with us, they would not have died and they would not have been slain; so Allah makes this to be an intense regret in their hearts; and Allah gives life and causes death and Allah sees what you do.

See what they liken you to! So they have gone astray and cannot find the way.

See what likenesses do they apply to you, so they have gone astray, therefore they shall not be able to find a way.