Gospel means "good news." When we say gospel, what we are referring to is the summary of the Bible's story, having its climax in the life, death, and resurrection of Jesus Christ and concerning the fallen world destined for judgment. The gospel then, is good news for people who desperately need it. The vide above and the content below is a summary of the gospel.
There is a God, and He created everyone and everything for His glory and to live in relationship with him. (Gen 1:26-27, Rev 4:11)
However, sin entered the world through one man (Adam). This sin pattern has continued in us all. Because of sin, we all have broken our relationship with God and rejected His authority in order to follow our own desires. The Bible says that we are dead in our sin and God's justice and wrath is upon us. (Rom 3:10-11, Rom 3:23, Rom 6:23, Eph 2:1)
That's the bad news, here's the good news: Despite our rebellion, God is loving and merciful and has created a way to save us from sin and its consequences. at the appointed time in human history, He sent Jesus to die in our place so that we can be saved from His judgment. Jesus, being both a human being and God Himself, endured our punishment on the cross and satisfied His wrath for all who believe. (Rom 5:8-9, Eph 2:4-5)
Jesus conquered death and rose again as the ruler of the Kingdom of God. God alone can make us alive through Jesus Christ so that we can rejoice in loving kindness for eternity (Rom 5:10, Rom 6:4). By God's grace, Jesus became our sin so that we could become His righteousness! (2 Cor 5:21)
This salvation that Jesus won is a free gift of God for all who believe. And like all gifts, it must be received. It is only through faith in Christ alone that we are saved from our sin! Believe this good news, this Gospel, and live joyfully with the God who has both created you and has saved you. (Rom 10:9, Eph 2:8-9, 1 John 2:4-5).