Amplified Bible (AMP)
2 Consider it wholly joyful, my brethren, whenever you are enveloped in or encounter trials of any sort or fall into various temptations.
3 Be assured and understand that the trial and proving of your faith bring out endurance and steadfastness and patience.
4 But let endurance and steadfastness and patience have full play and do a thorough work, so that you may be [people] perfectly and fully developed [with no defects], lacking in nothing.
PATIENCE IS WORKING IN YOU!