The gospel is the truth of God, the reality of man's need, the manifestation of Jesus Christ and the simplicity of the plan for redemption.
God is love (1 John 4:8). God is just (Deut. 32:4). God is perfect and holy (Psalms 99:5). God is the creator of heaven and earth (Col. 1:16). God created everything for His glory and His honor (Rev. 4:11). God hates sin and cannot allow it in His presence (Rom. 6:23); but God also loves us (John 3:16).
Man is God's most precious creation (Gen. 1:26). Man was created to glorify and honor God and therefore cannot live a complete or fulfilled life without Him (Matt. 22:37). Man is selfish and proud. Man is sinful (because of Adam and Eve) and therefore needs a way to be redeemed to God. But man cannot reach God on his own (Rom. 5:12).
Jesus Christ is God in human form (Phil. 2:6-7). He came to earth as God's perfect and only son to provide a way for man to reach God. Jesus Christ is the way to God, the truth of the scriptures and eternal life for all who believe (John 14:6). Jesus Christ is the picture of a perfect human - one who never sinned and lived a life completely according to God's plan and totally committed to serving and honoring God (Heb. 4:15; 1 John 3:8).