He is the expression and explanation of who God is.  No one has seen God, it says in verse 18, but Jesus, the One and Only, or the only begotten One, who came from the Father’s right hand, has made him known.  If you read this opening chapter carefully you’ll find that what Jesus, the Word, made known, was God’s glory, grace and truth.  You’ll also notice in the first two verses that there is a plurality in the Godhead: The Word was with God, and the Word was God.  He was with God in the beginning.” 

This One who came to reveal the Father came to His own chosen people, but they did not receive Him.  The world didn’t recognize Him.  But notice what it says in verses  12 & 13, “Yet to all who received him, to those who believed in his name, he gave the right to become children of God - children born not of natural descent, nor of human decision or a husband’s will, but born of God.” 

If what you know of Jesus Christ convinces you that He is the Savior, let me encourage you to receive Him by believing in Him, asking Him to be your Savior and Lord.  If you’re still not sure, read John’s Gospel again, carefully, prayerfully and with an open heart and mind.  Jesus promised, “Seek and you will find.”  Ask God to help you understand.