As Jesus passed by, he saw a man that had been blind from birth. His disciples asked, “Master, who did sin, this man, or his parents, that he was born blind?” Their question reflected an indifference to the man’s suffering, as well as a theological misunderstanding (that it was possible for a child to sin in the womb). Jesus answered, rejecting the idea that either the man or his parents were responsible for his blindness. “Neither hath this man sinned, nor his parents: but that the works of God should be made manifest in him. I must work the works of him that sent me, while it is day: the night cometh, when no man can work. As long as I am in the world, I am the light of the world” (John 9:1-5). The words of Jesus, “the night cometh, when no man can work,” expressed the urgency He felt for His ministry.

In biblical times, people were bound to work during daylight. Artificial illumination, which allows modern man to work virtually around the clock, was very rare and expensive in the time of Christ. It was almost a proverbial statement, that daylight was the time to work. Very little could be accomplished after the sun went down. Time is always moving forward

The contrast between light and darkness is a prominent theme highlighted in John’s writings. He spoke of Jesus the incarnate Word in chapter one, saying, “In him was life; and the life was the light of men. And the light shineth in darkness; and the darkness comprehended it not” (John 1:4-5). Jesus Himself explained the necessity of working while it was day, saying, “As long as I am in the world, I am the light of the world” (John 9:5). Earlier He had announced to His detractors, “I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life” (John 8:12). Light and life mark Christ, while darkness and death mark the world. The immediate response to the blind man was to give him sight and light.

It is significant that the words of urgency, of working while it is day, apply not only to Jesus but to His followers. The American Standard Version, based on better manuscript evidence, renders John 9:4 as “We must work the works of him that sent me, while it is day: the night cometh, when no man can work.” The “We” indicates that His followers share in the responsibility to be urgent in carrying out the will of the Father. Jesus obeys the One Who sent Him, the Heavenly Father. The followers of Christ cannot please the Father unless they are urgent in working the works of the Father, just as Jesus did. “We must” do this while it is day.

Jesus said, “This is the work of God, that ye believe on him whom he hath sent” (John 6:29). We must believe and follow Him. The writer of Hebrews spoke of the perfect obedience of Christ, and the necessity of all of His followers obeying as He did. “Though he were a Son, yet learned he obedience by the things which he suffered;  And being made perfect, he became the author of eternal salvation unto all them that obey him” (Hebrews 5:8-9).