A.T. Robertson Commentary John 8:30

"As he spake these things, many believed on him." — John 8:30 (ASV)

Many believed on him (πολλο επιστευσαν εις αυτον). Ingressive aorist active indicative, came to believe, nominally at any rate, as in 2:23. But the tension was keen and Jesus proceeded to test the faith of these new believers from among the Pharisees.