1 John 2:17 (ESV) And the world is passing away along with its desires, but whoever does the will of God abides forever.
Isaiah 41:8-20 (ESV) But you, Israel, my servant, Jacob, whom I have chosen, the offspring of Abraham, my friend; 9 you whom I took from the ends of the earth, and called from its farthest corners, saying to you, “You are my servant, I have chosen you and not cast you off”; 10 fear not, for I am with you; be not dismayed, for I am your God; I will strengthen you, I will help you, I will uphold you with my righteous right hand. 11 Behold, all who are incensed against you shall be put to shame and confounded; those who strive against you shall be as nothing and shall perish. 12 You shall seek those who contend with you, but you shall not find them; those who war against you shall be as nothing at all. 13 For I, the LORD your God, hold your right hand; it is I who say to you, “Fear not, I am the one who helps you.” 14 Fear not, you worm Jacob, you men of Israel! I am the one who helps you, declares the LORD; your Redeemer is the Holy One of Israel. 15 Behold, I make of you a threshing sledge, new, sharp, and having teeth; you shall thresh the mountains and crush them, and you shall make the hills like chaff; 16 you shall winnow them, and the wind shall carry them away, and the tempest shall scatter them. And you shall rejoice in the LORD; in the Holy One of Israel you shall glory. 17 When the poor and needy seek water, and there is none, and their tongue is parched with thirst, I the LORD will answer them; I the God of Israel will not forsake them. 18 I will open rivers on the bare heights, and fountains in the midst of the valleys. I will make the wilderness a pool of water, and the dry land springs of water. 19 I will put in the wilderness the cedar, the acacia, the myrtle, and the olive. I will set in the desert the cypress, the plane and the pine together, 20 that they may see and know, may consider and understand together, that the hand of the LORD has done this, the Holy One of Israel has created it.
"Blessed is the man who remains steadfast under trial, for when he has stood the test he will receive the crown of life, which God has promised to those who love him." James 1:12 (ESV)
"Count it all joy, my brothers, when you meet trials of various kinds, for you know that the testing of your faith produces steadfastness. And let steadfastness have its full effect, that you may be perfect and complete, lacking in nothing. If any of you lacks wisdom, let him ask God, who gives generously to all without reproach, and it will be given him. But let him ask in faith, with no doubting, for the one who doubts is like a wave of the sea that is driven and tossed by the wind. For that person must not suppose that he will receive anything from the Lord; he is a double-minded man, unstable in all his ways." James 1:2-8 (ESV)