Verses 7 to 10 of John 11. 

Finally, he said to his disciples, “Let’s go back to Judea.”

But his disciples objected. “Rabbi,” they said, “only a few days ago the people in Judea were trying to stone you. Are you going there again?” Jesus replied, “There are twelve hours of daylight every day. During the day people can walk safely. They can see because they have the light of this world. But at night there is danger of stumbling because they have no light.”