In most American churches, the Gospel has been reduced down to easy-believism and do-goodism. This kind of preaching is worthless. Simply believing that Jesus is God, and going about doing good because you’re dedicated to Christian virtues won’t save anyone.
Micah 6: 8, He hath shewed thee, O man, what is good; and what doth the LORD require of thee, but to do justly, and to love mercy, and to walk humbly with thy God?
Walking humbly with God means much more than acknowledging Him. It means dying to self, and living for Him. When we do that, we will do justly and love mercy. We cannot help but do so. But to get to the point of being able to walk humbly with Him requires that the Gospel has been preached.
So what is the Gospel? It’s the Good News that Jesus was born of a virgin, lived a holy life, died a substitutionary death, rose triumphantly, and now lives at the right hand of the Father. One day, He’s coming back. Until then, He’s working out His will in the lives of those who love Him. It is His will that we obey Him (Luke 6: 46, John 14: 23), that we are salt and light to a sin-sick world (Matthew 5: 13-16), that we serve others (2 Corinthians 4: 5, Colossians 3: 23, 24), take care of the poor (Galatians 2: 10), the widows and the orphans (James 1: 27), and serve the oppressed (Matthew 25: 34-39). In short, He is the God who died for us and we are to take up our crosses daily and follow Him wherever He leads us (Luke 9: 23).
If we dedicate our lives to doing what God has required of us, starting first with obeying Him, our lives will be a blessing to our families, to our churches, and to our communities. Anything less is disobedience.