Deuteronomy, Chapter 8, verses 2-3, 14-16
1 An exhortation to obedience in regard of God's dealing with them1 Corinthians, Chapter 10, verses 16-17
14 We must flee from idolatry10
10:16 The cup which we bless - By setting it apart to a sacred use, and solemnly invoking the blessing of God upon it.Is it not the communion of the blood of Christ - The means of our partaking of those invaluable benefits, which are the purchase of the blood of Christ. The communion of the body of Christ - The means of our partaking of those benefits which were purchased by the body of Christ - offered for us.
10:17 For it is this communion which makes us all one. We being many are yet, as it were, but different parts of one and the same broken bread, which we receive to unite us in one body.
John, Chapter 6, verses 51-58
32 declareth himself to be the Bread of life to believers6
6:51 If any eat of this bread - That is, believe in me: he shall live for ever - In other words, he that believeth to the end shall be saved. My flesh which I will give you - This whole discourse concerning his flesh and blood refers directly to his passion, and but remotely, if at all, to the Lord's Supper.
6:52 Observe the degrees: the Jews are tried here; the disciples, Joh 6:60-66, the apostles, Joh 6:67.
6:53 Unless ye eat the flesh of the Son of man - Spiritually: unless ye draw continual virtue from him by faith. Eating his flesh is only another expression for believing.
6:55 Meat - drink indeed - With which the soul of a believer is as truly fed, as his body with meat and drink.
6:57 I live by the Father - Being one with him. He shall live by me - Being one with me. Amazing union!
6:58 This is - That is, I am the bread - Which is not like the manna your fathers ate, who died notwithstanding.

8 An exhortation to obedience, in consideration of past and promised mercies, Deu 8:1-9.
A caution not to forget God in prosperity, Deu 8:10-18.
A threatening, in case of apostacy, Deu 8:19-20.
8:2 All the way - All the events which befel three in the way, the miraculous protections, deliverances, provisions, instructions which God gave thee; and withal the frequent and severe punishments of thy disobedience. To know - That thou mightest discover to thyself and others that infidelity, inconstancy, hypocrisy, and perverseness, which lay hid in thy heart; the discovery whereof was of singular use both to them, and to the church of God in all succeeding ages. It is good for us likewise to remember all the ways both of God's providence and grace, by which he has led us hitherto through the wilderness, that we may trust him, and chearfully serve him.
8:3 By every word - That is, by every or any thing which God appoints for this end, how unlikely so - ever it may seem to be for nourishment; seeing it is not the creature, but only God's command and blessing upon it, that makes it sufficient for the support of life.