Sifrei Bamidbar 40

(Bamidbar 6:24) "The L-rd bless you": with the explicit blessing (Devarim 28:3-6) "Blessed shall you be in the city and blessed shall you be in the field … Blessed shall be your basket and your remainder. Blessed shall you be in your coming in and blessed shall you be in your going out." "The L-rd bless you": with possessions "and keep you": with possessions. R. Nathan says: May He bless you with possessions and keep you — in body. R. Yitzchak says "and keep you": from the evil inclination, as it is written (Proverbs 3:26) "For the L-rd will be with you in your trust, and He will guard your feet from entrapment." Variantly: "and keep you": from all evil, viz. (Psalms 121:4-7) "He neither slumbers nor sleeps, the Keeper of Israel … at your right hand … By day the sun … The L-rd will keep you from all evil." Variantly: "and keep you": from mazikkin (destructive agents), viz. (Ibid. 91:11) "For His angels will He charge for you to keep you in all your ways." Variantly: "and keep you": He will keep for you the covenant of your fathers, viz. (Devarim 7:12) "… then the L-rd your G-d will keep for you the covenant and the lovingkindness which He swore to your fathers." Variantly: "and keep you": He will keep for you the "end" (i.e., the time of redemption). And thus is it written (Isaiah 21:11-12) "A prophecy concerning Duma (Edom): He (Israel) calls to Me from Seir: 'Keeper, what of the night?' 'Keeper, what of the night?' The Keeper says: 'Morning is coming and also night, etc.'" Variantly: "and keep you": He will keep your soul at the time of death, viz. (I Samuel 25:29) "and my master's soul will be bound up (after death) in the bond of life." From this I would understand both (the soul of) the righteous and the wicked to be intended. It is, therefore, written (Ibid.) "but the soul of your foes will He hurl away from the hollow of a sling." Variantly: "and keep you": He will keep your feet from Gehinnom, viz.: (Ibid. 2:9) "He will keep (from Gehennom) the feet of His pious ones." Variantly: "and keep you": He will keep you in the world to come, viz. (Isaiah 4:31) "But those who trust in the L-rd will renew strength. They will lift their wings as eagles, etc."