There was a fourfold witness of Jesus: 1) Jesus HImself; 2) John the Baptist; 3) the works of Jesus; and 4) the witness of the Father. Jesus indicted the Jews for their unbelief which was a spiritual and moral failure against God. The never heard God's voice yet claimed to be followers of Moses and never saw His form, even though Jesus was the manifestation of the Father. Even though they were experts in the Scriptures, they didn't have the Word of God dwelling in them and missed Jesus, who the entire Bible pointed to. The Jews didn't read the Bible as intended, not understanding that it is the story of how God loves His children and comes to rescue them. Every Bible story whispers His name.