well said, Francis Chan
“The Spirit is absolutely essential for fulfilling the mission we have been given. Unless the Spirit gives us the power to faithfully follow Jesus, we will follow in the footsteps of disobedient Israel. So great is our need for the Spirit that we are commanded to walk by the Spirit (Galatians 5:16), be filled with the Spirit (Ephesians 5:18), pray in the Spirit (Jude v. 20), and put sin to death by the Spirit (Romans 8:13), among other things. The Spirit secures our faithfulness till the end. Even the assurance that we are God’s children comes from the testimony of the Holy Spirit (Romans 8:16). In Romans 7 and 8, Paul contrasted the life that is lived in the flesh (that is, apart from the Spirit of God) with the life that is lived in the Spirit. The difference is staggering.”
(Multiply, page 285)