"Lord, I believe."

38 He said, “Lord, I believe,” and he worshiped Him. 39 Jesus said, “For judgment I came into this world, that those who do not see may see, and those who see may become blind.” (John 9:38-39 ESV)

The man whom Jesus had healed from physical blindness is now fully healed from spiritual blindness as well. The healed and saved man worshiped Jesus, and Jesus accepted his worship as appropriate. The text would prompt each reader to acknowledge that–in ourselves–we are spiritually blind and need healing. We need to believe in Jesus and worship Jesus, staying humble before Him, growing in faith and worship each day.

"that I may believe in Him"

36 He answered, “And who is He, sir, that I may believe in Him?” 37 Jesus said to him, “You have seen Him, and it is He who is speaking to you.” (John 9:36-37 ESV) 

The healed man, in whose situation Jesus had already done a mighty work, was ready to believe. The man's physical need had been met, and now his spiritual need–his greatest need; his need to know Jesus–was met. Jesus healed the man, He found the man, He spoke to the man, and He revealed Himself to the man. The Lord was powerful, persistent, and gentle in reaching out to this man and in calling him to faith. 

Risking (and Losing) Everything, and Gaining Christ

32 "Never since the world began has it been heard that anyone opened the eyes of a man born blind. 33 If this man were not from God, He could do nothing." 34 They answered him, "You were born in utter sin, and would you teach us?" And they cast him out.

35 Jesus heard that they had cast him out, and having found him He said, “Do you believe in the Son of Man?” (John 9:32-35 ESV) 

The parents of the healed man had been afraid of being cast out of the synagogue if they gave a positive testimony concerning Jesus. (See John 9:22.) The healed man, having been born blind, was not so accustomed to the comforts of polite society, and he spoke boldly, not stymied by fear of losing new-found prospects. The healed man risked–and lost–all of his potential societal standing, but what did he gain? Jesus Himself compassionately sought out the healed man and found him.

"God listens to him."

"We know that God does not listen to sinners, but if anyone is a worshiper of God and does His will, God listens to him. (John 9:31 ESV) 

Is it true that God does not listen to sinners? God does not favorably hear unrepentant sinners who are in rebellion against divine authority. If, like the sinful tax collector, someone cries out, "God, have mercy on me a sinner" (Luke 18:13), then God will certainly hear that prayer, Repentant sinners–those who, out of a regenerated heart, want to worship God and do God's will–are heard by God because they are spiritually united to Christ, who always did the will of His Father (John 8:29).

Vincible Ignorance

The man answered, "Why, this is an amazing thing! You do not know where He comes from, and yet He opened my eyes. (John 9:30 ESV)

The healed man is incredulous as to the professed ignorance of the religious leaders. The Pharisees were supposed to be the top religious experts of their day. They were supposed to be able to guide people in knowing how God's Word applied in the situations they faced. But confronted with a miracle–which happened in a way they did not sanction or expect–they immediately ran out of answers.