'Adheres' in the Bible

I assure you and most solemnly say to you, he who believes [in Me as Savior—whoever adheres to, trusts in, relies on, and has faith in Me—already] has eternal life [that is, now possesses it].

Jesus said to her, “I am the Resurrection and the Life. Whoever believes in (adheres to, trusts in, relies on) Me [as Savior] will live even if he dies;