Faint not nor grieve, for ye will overcome them if ye are (indeed) believers.
If ye have received a blow, the (disbelieving) people have received a blow the like thereof. These are (only) the vicissitudes which We cause to follow one another for mankind, to the end that Allah may know those who believe and may choose witnesses from among you; and Allah loveth not wrong-doers.
And that Allah may prove those who believe, and may blight the disbelievers.
Or deemed ye that ye would enter paradise while yet Allah knoweth not those of you who really strive, nor knoweth those (of you) who are steadfast?
If ye have received a blow, the (disbelieving) people have received a blow the like thereof. These are (only) the vicissitudes which We cause to follow one another for mankind, to the end that Allah may know those who believe and may choose witnesses from among you; and Allah loveth not wrong-doers.
And that Allah may prove those who believe, and may blight the disbelievers.
Or deemed ye that ye would enter paradise while yet Allah knoweth not those of you who really strive, nor knoweth those (of you) who are steadfast?
3:[139-142]