What is the meaning of John 8:30?

As he spake these words, many believed on him. (John 8:30 KJV)

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

As he spoke these things many believed on him. (John 8:30 DBY)

As he spoke these things, many believed in him. (John 8:30 WEB)

As he is speaking these things, many believed in him; (John 8:30 YLT)

Interlinear

As he <autos> spake <laleo> these words, <tauta> many <polus> believed <pisteuo> on <eis> him. <autos> (John 8:30 KJV)

Albert Barnes’ Commentary

Verse 30. Many believed on him. Such was the convincing nature and force of the truths which he presented, that they believed he was the Messiah and received his doctrine. While there were many that became more obstinate and hardened under his preaching, there were many, also, who by the same truth were made penitent and believing.  “The same sun that hardens the clay, softens the wax” (Clarke).  

{z} “many believed on him” Joh 10:42