“ I don’t understand it and maybe you can help. Why would He (Jesus) not want everyone to know He is the Son of God in Mark 3:11-12?”
“11.Whenever the unclean spirits saw Him, they would fall down before Him and shout, “You are the Son of God !”
12. And He earnestly warned them not to tell who He was.”
That’s a good question! If you read the entire third chapter of Mark, you can tell there was a rising interest of people in Jesus and His message. Word was spreading about Him. The Bible says that a great multitude followed Him. The people knew that something out of the ordinary was happening. Jesus taught openly to large crowds. However, to answer your question about verses 11 and 12, Jesus demonstrated His authority over demons. Why does He command them to be silent about who He is? The reason is because demons do not make good character witnesses. You see, even the demons acknowledged who He was, but He didn’t want their testimony. Because of their fallen nature, they are untrustworthy.
John 3:16-17, “For God so loved the world, that He gave His only begotten Son, that whoever believes in Him shall not perish, but have eternal life. For God did not send the Son into the world to judge the world, but that the world might be saved through Him.” God sent his Son to die for the world as a sacrifice for our sins. His son, Jesus, was born, He lived here, He was crucified and resurrected from the dead. Once each of us recognizes this and acknowledges it, and repents of our sin and accepts Him as our Lord and Savior, we become born again (receive salvation/become saved). He did this for us so that we’re saved from God’s judgment (when God is going to judge the world based on the sins of everyone in this world who is not saved) from going to hell, and once you’re saved, you go to heaven for eternity. There is no other way to heaven but through Jesus.
Mark is one of the four books of what you would call the Gospels in the Bible. The reason they’re called the Gospels is because they are a record of Jesus’ life from when He was born to when He was crucified to when He was resurrected here on earth. They record Jesus’ life, death and His resurrection. The word Gospels means the Good News and the Good News is that when we recognize Him as a Savior of the world, we repent of our sins, we ask God for forgiveness of our sin and we accept Jesus as our Lord and Savior. We are saved from being judged for our sins and going to hell. Once we have salvation then and only then can we go to Heaven forever.
All four Gospels are: Matthew, Mark, Luke and John. They present Jesus as the Savior of the world (Messiah) but from different perspectives.
I hope this helps!