In the Bible, in Psalm 92:15, we are told that there is no wrong in God.
Even though Jesus never did any wrong, God allowed His Son, Jesus, to die for all the wrong things we have done. Jesus died on a cross, but God made Him alive again! Jesus took our punishment for us and saved us from punishment! That is how Jesus became our Savior!
In Psalm 62:1-2, we are told that our salvation comes only from God. In Isaiah 43:11, we are told that there is no other savior besides the LORD. In John 14:6, we are told that Jesus is the way to Heaven, and that no one comes to God, [in Heaven], except through His Son, Jesus.
In John 3:16, we are told that God loved us so much that He gave His Son for us, and that anyone who believes in Him [Jesus] will have eternal life ["True Life"]!
Romans 10:9 tells us that if a person speaks the words, "Jesus is Lord," with his or her mouth, and believes in his or her heart that God raised Jesus from the dead, that person will be saved.
Each person needs to ask Jesus to be his or her own Savior!
If a person does NOT ask Jesus into his or her life to be his or her Savior, that person is not welcome into Heaven to live with God forever because that person did not welcome Jesus into his or her life on the Earth. But...the GOOD NEWS is that if a person DOES welcome and ask Jesus into his or her life to be his or her Savior, then that person becomes a Christian, a follower of Jesus! He or she will live forever in Heaven with God!
That's why we all need Jesus!