Thy sisters, thine elder and thy younger - The Gentiles, who were before the Jews were called, and after the Jews were cast off, are here termed the elder and younger sister. These were to be given to Jerusalem for daughters; the latter should be converted to God by the ministry of men who should spring out of the Jewish Church. The former, who were patriarchs, etc., profited by the Lamb who was slain from the foundation of the world. Among the latter the Gospel was preached, first by Christ and his apostles, and since by persons raised up from among themselves.

But not by thy covenant - This was the ancient covenant, the conditions of which they broke, and the blessings of which they forfeited; but by that new covenant, or the renewal to the Gentiles of that covenant that was made originally with Abraham while he was a Gentile, promising that in his seed all the nations of the earth should be blessed; that covenant which respected the incarnation of Christ, and was ratified by the blood of his cross.

I will

Ezekiel 16:60 Nevertheless I will remember my covenant with you in the days of your youth, and I will establish to you an everlasting covenant.

Daniel 9:27 And he shall confirm the covenant with many for one week...

Hosea 2:18-23 And in that day will I make a covenant for them with the beasts of the field and with the fowls of heaven...

and thou

Ezekiel 6:7 And the slain shall fall in the middle of you, and you shall know that I am the LORD.

Ezekiel 39:22 So the house of Israel shall know that I am the LORD their God from that day and forward.

Jeremiah 24:7 And I will give them an heart to know me, that I am the LORD: and they shall be my people, and I will be their God...

Joel 3:17 So shall you know that I am the LORD your God dwelling in Zion, my holy mountain: then shall Jerusalem be holy...

Humbled and Silenced by Mercy. Ezek 0. 711111111
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John Newton—Olney Hymns

The Covenant of Grace
Q-20: DID GOD LEAVE ALL MANKIND TO PERISH 1N THE ESTATE OF SIN AND MISERY? A: No! He entered into a covenant of grace to deliver the elect out of that state, and to bring them into a state of grace by a Redeemer. 'I will make an everlasting covenant with you.' Isa 55:5. Man being by his fall plunged into a labyrinth of misery, and having no way left to recover himself, God was pleased to enter into a new covenant with him, and to restore him to life by a Redeemer. The great proposition I shall go …
Thomas Watson—A Body of Divinity

An Exhortation to Love God
1. An exhortation. Let me earnestly persuade all who bear the name of Christians to become lovers of God. "O love the Lord, all ye his saints" (Psalm xxxi. 23). There are but few that love God: many give Him hypocritical kisses, but few love Him. It is not so easy to love God as most imagine. The affection of love is natural, but the grace is not. Men are by nature haters of God (Rom. i. 30). The wicked would flee from God; they would neither be under His rules, nor within His reach. They fear God, …
Thomas Watson—A Divine Cordial