Believes Means to Obey, Beholds, and Lives.
John 3:36; 6:40; 11:25f
John 3:36
36 “He who believes in the Son has eternal life; but he who does not obey the Son will not see life, but the wrath of God abides on him.”; John 6:40
40 “For this is the will of My Father, that everyone who beholds the Son and believes in Him will have eternal life, and I Myself will raise him up on the last day.”; John 11:25f
25 Jesus said to her, “I am the resurrection and the life; he who believes in Me will live even if he dies,
26 and everyone who lives and believes in Me will never die. Do you believe this?”
John 3:16New American Standard Bible (1995)
“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.