Genesis 15:15

ואתה תבוא BUT THOU SHALT COME etc. Thou shalt not behold all this. אל אבותיך UNTO THY FATHERS — His father was an idolator and yet it (the text) announced to him that he (Abraham) would go to him! But this teaches you that Terah repented of his evil ways (Genesis Rabbah 30:4). תקבר בשיבה טובה THOU SHALT BE BURIED IN A GOOD OLD AGE — He announced to him that Ishmael would repent during his (Abraham’s) life-time (Genesis Rabbah 38:12). Esau, too, did, not become degenerate during Abraham’s life-time. It was just for this reason (in order that he might not witness Esau’s evil conduct) that Abraham died five years before his proper time, for the very day when he died Esau rebelled against God (Genesis Rabbah 63:12).

וְאַתָּ֛ה תָּב֥וֹא אֶל־אֲבֹתֶ֖יךָ בְּשָׁל֑וֹם תִּקָּבֵ֖ר בְּשֵׂיבָ֥ה טוֹבָֽה׃

And thou shalt go to thy fathers in peace; thou shalt be buried in a good old age.