What does John 7:18 mean?
Rather than being educated in some rabbinic school, or generating knowledge on His own, Jesus credits His amazing wisdom to God (John 7:16). In context, this is what Jesus means by those speaking on "his own authority." While Jesus is fully man, and fully God (Colossians 1:19), His earthly mission is to follow the will of God the Father. Since the message Jesus brings is that of God, God is to be given credit for it. Even further, Jesus claims that a person's willingness to obey God is what determines his or her understanding—rather than the reverse, where understanding enables obedience.Even Jesus' critics were forced to take note of His honesty and moral perfection (John 8:46). This very fact made Jesus' claims difficult to dismiss out-of-hand. This is another common theme of Christianity. When we give critics of the faith no cause to criticize us (Titus 2:7–8; 1 Peter 3:15–16), or to seek revenge (Romans 12:17–19), we make the gospel all but inarguable.