What does John 1:9 mean?
Light is used in the Bible as a symbol of life, knowledge, and goodness. Here, we are reminded that Jesus is the "true light." "True" here is from the potent Greek word alēthinos. This means something "equal in every possible respect, sharing the same nature and reality." In other words, Christ is the "one and only, absolutely perfect, real and true light." This is something Jesus will echo, by claiming to be "the way, and the truth, and the life," exclusively (John 14:6).There is no room to see Jesus as one way to heaven, or a possible way (Acts 4:12). He is the one and only, the sole real and true way. Unlike the law of Moses, which was given only to the people of Israel, this light is given to everyone: to the entire world. The best-known verse in the entire Bible, John 3:16, sums this up by saying that God loved the entire world enough to send His Son for the salvation of anyone who believes in Him. Not all people will choose to accept that light, however. Some will deliberately stay in the dark.