One way to summarize this good news is with the words "God", "Man", "Christ", & "Response".
God is the creator of all things (Gen. 1:1). He is the King, He is perfectly holy, He worthy of all worship, and He will punish sin (1Jo. 1:5, Rev. 4:11, Rom. 2:5-8).
All people, though created good, have become sinful by nature (Gen. 1:26-28, Psa. 51:5, Rom. 3:23). From birth, all people are alienated from God, hostile to God, and subject to the wrath of God (Eph. 2:1-3).
Jesus Christ, who is fully God and fully man, lived a sinless life, died on the cross to bear God’s wrath in the place of all who would trust in Him, and rose from the grave in order to give His people eternal life (Joh. 1:1, 1Ti. 2:5, Heb. 7:26, Rom. 3:21-26, 2Co. 5:21, 1Co. 15:20-22).
God calls everyone everywhere to repent of their sins and trust in Christ in order to be saved (Mark 1:15, Acts 20:21, Rom. 10:9-10).