Scripture tells us that the more we know God, the more we love Him—but His love for us never changes. He already knows us and fully loves us, calling us to obedience in Him.
God guided the people of Israel out of Egypt and through the wilderness. With this Old Testament backdrop Jesus now proclaims that He is the light of the world. He is the one who guides the people and shows them the way to life.
There are many barriers to evangelism. In order to overcome these barriers we need to think correctly about the gospel and steward what God has given us well.