He did promise

Happy is he who has the God of Jacob for his help, whose hope is in the Lord his God. (Psalm 146:5)

 “While it lasts, the religion of worshipping oneself is the best. I have an elderly acquaintance of about eighty, who has lived a life of unbroken selfishness and self-admiration from the earliest years, and is, more or less, I regret to say, one of the happiest men I know. From the moral point of view it is very difficult!” (C.S. Lewis)
 Happiness is a great thing. But many people have the wrong idea of what it really means. C.S. Lewis’ acquaintance knew the first kind of happiness—the superficial YOLO kind. But another kind of happiness endures regardless of circumstances, and is eternal—the peace and contentment that come from knowing God and being in relationship with Him.
 It’s natural to feel sad about the state of the world, to grieve because of loss, to struggle if you’re in an unhappy relationship, and so on. God did not promise the believer a blissful life of easy enjoyment—but He did promise to be always by your side, to have His hand over your life, and that He will cause all things to work together for your good when you love and follow Him. —Ronan Keane [1]

 Great faith is not the faith that walks always in the light and knows no darkness, but the faith that perseveres in spite of God’s seeming silences, and that faith will most certainly and surely get its reward. —Father Andrew (1869–1946)

[1] Activated Vol 21, Issue 11