When the natural man hears the word of God, it is foolishness unto him, 1 Cor 2:14. Ps 10:4 the wicked, through the pride of his countenance, will not seek after God, God is not in all his thoughts. Our faith can save us from many things here in this world, but it cannot save us eternally. We are justified only by Christ's faith and not our own, Gal 2:16.
We are members one of another and members of Christ's body, flesh and bones (Rom 12:5, Eph 5:30). Christ is the head and we are members of His body. To detach ourselves from the body is to be detached from the head and the life that the head gives to the body. Being detached from the body, we can not receive from the head or from the supply of the other members having no derived life from Christ. The things of God are only knowledge to us without the life and power of that knowledge that comes from the head (Christ) through the Spirit. We may have faith but not a living faith as lively stones (1Pt 2:4,5). We may understand the love of God but it's not being shed abroad in our hearts by a living faith through the Holy Spirit (Rom 5:5).