1 john 2 teaches us that since Jesus is the atoning sacrifice for our sins, we are made complete in Him and can rightly claim to live in Him and consequently have the power and freedom to walk as He did. Through our relationship with Him, we are enabled by His grace to live a lifestyle in obedience to His word and commands. The truths of His word were evident in His life and walk, and therefore should be evident in our lives. As one begins this relationship with God, our old lifestyle of "darkness is passing and the true light is already shining", which is Christ in us. Our old worldly ways ("cravings of sinful man") pass away, "but the man who does the will of God lives forever". We are warned not to lose faith that Jesus is the Christ, which is "what you have heard from the beginning", even though some (antichrists) will try to persuade us to deny Him. Our indwelling Spirit of God teaches and guides us in truth and will faithfully remain in us, preserving us and allowing us to continue in confidence awaiting His return.