Adam Clarke on Genesis 48:7

Rachel died by me, etc. - Rachel was the wife of Jacob's choice, and the object of his unvarying affection; he loved her in life - he loves her in death: many waters cannot quench love, neither can the floods drown it. A match of a man's own making when guided by reason and religion, will necessarily be a happy one. When fathers and mothers make matches for their children, which are dictated by motives, not of affection, but merely of convenience, worldly gain, etc., etc., such matches are generally wretched; it is Leah in the place of Rachel to the end of life's pilgrimage.