Rashi on Genesis 28:20/רש"י על בראשית כ״ח:כ׳

1אם יהיה אלהים עמדי IF GOD WILL BE WITH ME — if He will keep for me these promises which He has made me that He would be with me, even as He said to me (v. 15), “Behold, I am with thee” (Genesis Rabbah 70:4),

2ושמרני AND IF HE WILL KEEP ME — even as He said to me (v. 15) “And I will keep thee whithersoever thou goest”, (Genesis Rabbah 70:4)

3ונתן לי לחם לאכול AND IF HE WILL GIVE ME BREAD TO EAT — even as He said (v. 15) “For I will not forsake thee” (Genesis Rabbah 70:4), — for one who has to beg his bread is called “forsaken”, as it is said (Psalms 37:25) “I have not seen the righteous forsaken and his seed begging bread”.