As Jesus passed by he saw a man blind from birth. His disciples asked him, "Rabbi, who sinned, this man or his parents, that he was born blind?" Jesus answered, "Neither he nor his parents sinned; it is so that the works of God might be made visible through him. We have to do the works of the one who sent me while it is day. Night is coming when no one can work. While I am in the world, I am the light of the world." When he had said this, he spat on the ground and made clay with the saliva, and smeared the clay on his eyes, and said to him, "Go wash in the Pool of Siloam" — which means Sent. So he went and washed, and came back able to see. His neighbors and those who had seen him earlier as a beggar said, "Isn't this the one who used to sit and beg?" Some said, "It is," but others said, "No, he just looks like him." He said, "I am." So they said to him, "How were your eyes opened?" He replied, "The man called Jesus made clay and anointed my eyes and told me, 'Go to Siloam and wash.' So I went there and washed and was able to see." And they said to him, "Where is he?" He said, "I don't know." — John 9: 1-1

Be on guard for the times when we are too confident about who God is.