"While Jesus was in Jerusalem at Passover-time, during the festivities many believed in him as they saw the signs that he gave. But Jesus, on his side, did not trust himself to them — for he knew them all. He did not need anyone to tell him what people were like: he understood human nature." John 2:23-25
There’s a subtlety in the language of these verses that is huge for our understanding of Jesus and Belief. Three times in John 2, we are told that people “believed” in Him – the disciples at Cana, the disciples at the Resurrection, and “many” during this particular week. They had seen a man, seen His actions, heard His voice, watched His ways, and then they “believed” - ἐπίστευσαν - in Him. In our modern usage, this most generally means we’ve given intellectual assent to a set of beliefs about Jesus and what we know of His life. Which, let's be honest, for most of us, most of the time, is most like an add-on to our lifestyle and current way-of-life…
Not so for His disciples.
For them, “belief” implied a complete change of life; a physical following: to “believe” was to entrust one’s whole life to the object of that belief; in this case, Jesus Himself…
And particularly damning of our modern “add-on” accessorizing Christianity are verses 2:24 and 25. Here’s what they say in the precision of the Greek: “But on his side, Jesus Himself did not believe (ἐπίστευεν) in them, because of His knowing all. He had no need that any should testify concerning man; He indeed knew what was in man.” Unregenerated (or half-regenerated) human nature was not “believable” to Jesus. He knew that what was needed was wholesale death of the flesh and rebirth into Hisnature, that nature being the very one His disciples had “believed” in.
Do we understand that He alone – living His life within our lives – is the only life truly believable?