Fourthly, world conformity enters the picture here. Believers still have a desire for the things of the world under the cover and pretense that they are lawful, necessary, and fitting – even though the real motive is love for the world. The world and the spirit are enemies, and the one is always intent on expelling the other; they are a mutual impediment to each other, and therefore we must either fully yield to the world, or must yield fully and entirely to grace. As long as we halt between two opinions, and as long as we attempt to join together Christ and Belial, so long shall we make no progress. A bird which as been fastened to the earth will fall back to the earth when it wants to fly upward. Thus, he who wishes to fly heavenward must divorce himself from the world.
Wilhelmus A. Brakel, A Christian’s Reasonable Service Vol 4
In applying covenant theology, we need to recognize that God covenants corporately and not simply individually. God’s covenant with Abraham was not just to Abraham but “to [his] offspring” (Genesis 15:18. 17:7). This does not remove the individual, but the individual does not simply remain an individual. Every individual is born naturally into a family and a people. Likewise, an individual believer is born supernaturally from above into a fellowship with Christ as Head. The individual Christian is part of a family; the “household of God” (Galatians 6:10, Ephesians 2:19, 1 Timothy 3:15, Hebrews 3:6, 10:21). Thus the application of the covenant primarily happens in the household of God, that is, in the church. It certainly has implications for the individual and for the natural family, but is seen primarily in the church. This means that a faith expressed solely as “just God and me” is foreign to the pages of scripture.
Covenant Theology Applied, Donny Friederichsen, Tabletalk, October 2020