A frequent misinterpretation twists this verse into proof of irresistible predestination or double predestination, suggesting God forces unbelief on some while compelling belief in others, overlooking the broader biblical emphasis on human responsibility, free choice, and invitations to believe, as well as the immediate context where unbelief stems from rejecting Jesus' difficult teachings rather than divine compulsion; another error assumes Jesus' foreknowledge eliminates human agency or guarantees salvation for all hearers, ignoring calls to personal repentance and faith throughout the Gospels.
John 6:64
King James Version (1769)
64 But there are some of you that believe not. For Jesus knew from the beginning who they were that believed not, and who should betray him.
Jesus demonstrates His divine omniscience by knowing from the beginning which of His followers would genuinely believe in Him and which would not, including the betrayer Judas, emphasizing that true faith is not superficial association but a heartfelt commitment that endures even challenging teachings, as seen in the context where many disciples deserted Him over the discourse on eating His flesh and drinking His blood as metaphors for deep spiritual union.