From Mark Ballentine on God is Open:

One of Calvinists’ favorite verses:

“No man can come to me, except the Father which hath sent me draw him: and I will raise him up at the last day.” (John 6:44)

So, how does the Father draw someone? The very next verse explains:

“It is written in the prophets, And they shall be all taught of God. Every man therefore that hath heard, and hath learned of the Father, cometh unto me.” (John 6:45)

Notice Abraham’s similar answer, when, the rich man begs him, to send Lazarus to warn his brothers.

(Luke 16:27-28)
“…they have Moses and the prophets; let them hear them.” (Luke 16:29) Mark B