The core teaching of God in the bible is the new covenant Passover. God teaches that we can be the people of God through the Passover new covenant and we can inherit the kingdom of heaven.
Jeremiah 31:31 “The days are coming,” declares the Lord, “when I will make a new covenant with the people of Israel and with the people of Judah……33 “This is the covenant I will make with the people of Israel after that time,” declares the Lord. “I will put my law in their minds and write it on their hearts. I will be their God, and they will be my people.
By keeping the new covenant, we can be the people of God and go back to heaven our spiritual home. Moreover, Apostle Paul teaches that we can be the children of God through the Passover. In the Book of the Second Corinthians, he quotes from the verse above from Jeremiah and reveals that we can be the children of God through the new covenant.
2 Corinthians 6:16 For we are the temple of the living God. As God has said: “I will live with them and walk among them, and I will be their God, and they will be my people.”
Right after quoting from the Book of Jeremiah, he continues to explain the meaning of the verse by saying that those who became the people of God through the new covenant are considered as the children by God.
17 Therefore, “Come out from them and be separate, says the Lord. Touch no unclean thing, and I will receive you.” 18 And, “I will be a Father to you, and you will be my sons and daughters, says the Lord Almighty.”
We who kept the new covenant Passover can be the children of God. Even though once we did not have anything with God. We were considered as aliens and strangers toward God. Through the new covenant, however, we can be regarded as the people, and ultimately the children, of God. Then how can we be the children of God through the Passover, the new covenant.
The Passover is the ceremony through which we can participate in the flesh and blood of God by the promise of God. Since we can receive the flesh and blood of God, God becomes our Father and Mother, and we can become the children of God who has the same flesh and blood as God.
I give thanks and honor to Father and Mother for allowing us sinners to be the children of God through the new covenant Passover.