A merry heart doeth good like a medicine: but a broken spirit drieth the bones.
A cheerful heart is good medicine; a crushed spirit wears a person down. An observation about heart and body, not a reproach to anyone who is struggling.
KJV19He loveth transgression that loveth strife: and he that exalteth his gate seeketh destruction. 20He that hath a froward heart findeth no good: and he that hath a perverse tongue falleth into mischief. 21He that begetteth a fool doeth it to his sorrow: and the father of a fool hath no joy. 22A merry heart doeth good like a medicine: but a broken spirit drieth the bones. 23A wicked man taketh a gift out of the bosom to pervert the ways of judgment. 24Wisdom is before him that hath understanding; but the eyes of a fool are in the ends of the earth. 25A foolish son is a grief to his father, and bitterness to her that bare him.
Short sayings of practical wisdom for everyday life, many attributed to Solomon.
My brethren, count it all joy when ye fall into divers temptations; Knowing this, that the trying of your faith worketh patience. But let patience have her perfect work, that ye may be perfect and entire, wanting nothing.
James does not ask you to enjoy pain. He says a tested faith grows endurance, and endurance, given time to do its work, makes you whole, lacking nothing.
Restore unto me the joy of thy salvation; and uphold me with thy free spirit.
After a failure, ask God to give back the joy of His salvation and to hold you up.