We’ve been studying the Psalms in our Wednesday night Bible study at my church. Psalm 37 and 73 have quite a lot to say about what our response should be when life doesn’t seem “fair” by our standards. I found this quote while preparing the lesson and it’s powerful, convicting (in an “ouch” sort of way) and definitely reassuring.
Whoever truly believes in God will be no longer fretful against the apparent irregularities of this present life, but will rest assured that what is mysterious is nevertheless just, and what seems hard, is, beyond a doubt, ordered in mercy.
Charles Haddon Spurgeon, “A Treasury of David”, 1885
But as for me, my feet had almost stumbled, my steps had nearly slipped. For I was envious of the boastful, when I saw the prosperity of the wicked…but it is good for me to draw near to God. I have put my trust in the Lord God, that I may declare all Your works. (Psalm 73: 2,3 and 28 NKJV)
Anticipatience 
That is a powerful statement.
Ephesians 3:14-19 came to my mind when I read this. I so need to “grasp how wide and long and high and deep is the love of Christ, and to KNOW this love that surpasses knowledge- that I may be filled to the measure of ALL the fullness of God.”
This was a great encouragment. It reminds me of another old song. “Farther along we’ll know all about it … We’ll understand it all by and by.”