I believe that God sent His Son, Jesus Christ into the world so that whosoever believes in Him might not perish but have Eternal life. The wages of sin is death, but the gift of God is Eternal Life through Jesus Christ our Lord. Jesus paid the penalty for our sins by shedding His Blood and dying. If that same Spirit which raised Christ from the dead dwells in you, then you will be raised also. Those who do not have the Spirit of Christ Jesus, do not belong to Him. (Please read Romans, chapter 8, in the New Testament of the Bible). "It is Christ in you the hope of glory,"
(Please read (Colossians 1:27, 1 and 2 Corinthians and the Book of John in the Bible ).
P. S. The devil believes in Jesus and trembles, so we need more than mental belief, therefore check your heart to make sure that you have Jesus living in your heart. See 2 Corinthians 13:5 in the Bible.