With our eyes fixed on Jesus we see God as three persons in communal giving and receiving. The three are always entirely with and for one another. Indeed, the three are so closely bound up with one another that they are said to “indwell” one another. While Father, Son and Spirit are distinct, they do not exist in isolated individuality. Father, Son and Spirit have always existed and forever will exist in a circle of intimate love.
God’s purpose for his creation must, therefore, be true to who he is as essentially relational. And so it is. For in Christ, we see that the purpose of the Triune God is to reach out beyond his own shared life in order to enjoy relationship with those who are not God. Furthermore, the way he achieves his purpose is also true to who he is as deeply relational. For he works out his eternal purpose in history through covenant relationships.
A covenant is essentially a promise, a vow. God’s covenant promise with Israel is frequently expressed in the words, “I will be your God and you will be my people”. This is God’s promise-plan to be our God in mutual love relationship.
The promise-plan of God makes its way to Christ. He is the “Yes” to all the promises of God. There is no “if” or “maybe” or “Yes, but…” Only Jesus is in view as God’s emphatic, “YES!” So, in union with Christ, we are now God’s people and he is our God as loving Father. And, in the Spirit, we confidently await our future on the new earth when God himself says, “Look! God’s dwelling place is now among the people, and he will dwell with them. They will be his people, and God himself will be with them and be their God” (Revelation 21:3)