You shall not mistreat any widow or fatherless child. If you do mistreat them, and they cry out to me, I will surely hear their cry, and my wrath will burn, and I will kill you with the sword, and your wives shall become widows and your children fatherless.
He has made everything beautiful in its time. Also, he has put eternity into man's heart, yet so that he cannot find out what God has done from the beginning to the end.