2 Bible Verses about Adversity, Purpose Of

and ye have forgotten the exhortation, which reasoneth with you as with sons: "My son, despise not the chastening of the Lord, nor faint when reproved by him; for whom the Lord loveth, he chasteneth; and scourgeth every son whom he receiveth." It is for chastening that ye endure; God dealeth with you as with sons; for what son is he, whom the father chasteneth not?read more.
But if ye are without chastening, of which all have been made partakers, then are ye bastards and not sons. Furthermore, we were chastened by the fathers of our flesh, and we gave them reverence; shall we not much rather be in subjection to the Father of spirits, and live? For they indeed for a few days chastened us, according as it seemed good to them; but he for our profit, that we might be partakers of his holiness. Now all chastening for the present indeed seemeth to be not joyous, but grievous; but afterward it yieldeth the peaceful fruit of righteousness to those who have been exercised thereby.

who are guarded by the power of God through faith unto a salvation ready to be revealed in the last time; wherein ye greatly rejoice, though now for a short time, if need be, made sorrowful by manifold trials, that the proof of your faith, much more precious than gold which perisheth, but is tried with fire, may be found unto praise and glory and honor at the manifestation of Jesus Christ;read more.
whom, having not seen, ye love; in whom, though now ye see him not, yet believing, ye rejoice with joy unspeakable and full of glory,