Jesus answered, “Are there not twelve hours in the day? If anyone walks in the day, he does not stumble, because he sees the light of this world. But if one walks in the night, he stumbles, because the light is not in him.” John 11:9-10

Jesus was with his disciples in a safe location away from the threat of the Pharisees. They were avoiding the area of Jerusalem because of the danger of being stoned or killed by the Pharisees.
Jesus heard that Lazarus, his close friend, was sick and told his disciples they were going to travel to Judea to see Lazarus, and his sisters Mary and Martha.
This caused one of the disciples to say “Rabbi, lately the Jews sought to stone You, and are You going there again?”
Jesus responded and told the disciples there are twelve hours of light in the day and if anyone walks in the day they will not stumble because they see the light of the world. But if you walk at night you will stumble because the light is not in you.
This admonition from Jesus is perfect wisdom for all believers. Walk in the light as Jesus is in the light and you will have safe travels and protection from the evils of the world.
There are all kinds of threats around you which you cannot see or anticipate without the light of Jesus. You are only one step away from falling into trouble.
If you attempt to walk through life without seeking the light of Jesus you will be stumbling in darkness and fall into all kinds of trouble.
This is why it is so important to commit your works each day to God and seek out His wisdom and protection. Jesus is omniscient and knows your every thought and the steps you will take today before you wake up in the morning.
Come to Jesus and live with Him in Spirit and Truth. For in Him we live and move and have our being.