ציטירנדיקער פּירוש אויף קהלת 5:18

“And Esau said: I have much [rav].” This implies much but not “everything.” While Jacob said for God has been gracious to me and I have everything [kol]. This is because the wicked, even if they have all the silver and gold in the world, nevertheless it appears to them that they are still lacking, and they have much but not all their needs. Therefore Esau said I have much but not “everything” because they are still lacking — one who has one hundred desires two hundred. The righteous are the opposite of this, for even if they have little in their possession, they are content with it and happy with their portion, and it appears as if they have everything. As it is written, Also when God gave a person wealth and possessions and enabled them to enjoy them (Ecclesiastes 5:18) — this is God’s gift. And afterward it states, When God will give any man wealth and possessions, and will enable him to enjoy them, to accept his lot and be happy in his work — this is a gift of God. And it is difficult to understand why it first mentions that God gave in the past tense, and afterward says that God will give which implies the future.