<p>3:3 <i>Being revealed before all that you are as it were a letter from Christ, delivered by us; written not with ink but with the Spirit of the living God- </i>Just as Paul needed no recommendation letter from Corinth because they were written in his heart, so they needed no letter of commendation. Because the commendation was in the spirit and not in the letter; in their hearts and not on tables of stone. Their desire for letters of commendation betrayed a lack of the Spirit. If they really knew that the new covenant was engraved on their hearts by the Spirit, there would be no interest in any letter of human commendation. And this must be remembered by us too. The letter from Christ was &quot;delivered by us&quot; in that Paul had brought the Spirit to them through preaching the word to them which led to their conversion. The Corinthians had been given the Spirit, but were not possessed of the Spirit (1 Cor. 3:1). They failed to feel&nbsp;and live according to the potential spiritual strength they had been given.</p><p><i>Not in tablets of stone, but in tablets that are hearts of flesh- </i>The reference is to Jer. 31:33 &quot;But this is the covenant that I will make with the house of Israel after those days, says Yahweh: I will put My law in their inward parts, and in their heart will I write it; and I will be their God, and they shall be My people&quot;. Yet the new covenant that was made with us by the sacrifice of Christ on the cross. Heb. 8 proves that we are under the new covenant by quoting from Jer. 31, which is a prophecy of how in the future, Israel will repent, and will enter into the new covenant. Twice the Spirit uses Jer. 31:31 to prove to us that we are under the new covenant now (see Heb. 8:6-13 and 10:16-19); yet Jer. 31 is a prophecy of how natural Israel in the future will enter into that covenant, after their humiliation at the hands of their future invaders. So we are being taught that our entering of the covenant now is similar to how natural Israel will enter that covenant in the future. The point is really clinched by the way the Spirit cites Jer. 31 as relevant to us today. The reasoning goes that because Jer. 31:34 speaks of sin forgiven for those who accept the new covenant, therefore we don't need sacrifices or human priesthood now, because Jer. 31:34 applies to us. So therefore God writing in our hearts is going on now, too. This is confirmed by Paul's allusion to Jer. 31 in 2 Cor. 3:3. God wrote with His Spirit on our hearts, He made a new covenant on the covenant-tables of our heart. Likewise 2 Cor. 1:22: &quot;Who hath also sealed us, and given us the earnest of the spirit in our hearts&quot;. There are several prophecies which speak of Israel entering that new covenant, and what it will mean to them. All of them, in some sense, apply to us who are now in the new covenant. All of us should be earnestly seeking to appreciate the more finely&nbsp;exactly what our covenant with God means, exactly what covenant relationship with God really entails. 2 Cor. 3:16 reasons that when Israel's heart shall turn to the Lord Jesus, then the veil that is on their heart will be taken away. But now, through the Spirit of the Lord Jesus, we each with unveiled face can behold the glory of the Lord Jesus (2 Cor. 3:18 RV). The clarity of vision concerning Christ which Israel will eventually come to should be ours now; our hearts should turn to Christ now, as theirs will do. For this reason, the Old Testament gives us much information as to how&nbsp;Israel&rsquo;s heart will turn to Christ.</p>