Believing is a choice, not an irresistible gift.
Jesus commanded men to believe:
Mar 1:15 – And saying, The time is fulfilled, and the kingdom of God is at hand: repent ye, and believe the gospel.
Jhn 20:27 – Then saith he to Thomas, Reach hither thy finger, and behold my hands; and reach hither thy hand, and thrust it into my side: and be not faithless, but believing
Jesus rebuked men for not believing:
Mar 16:14 – Afterward he appeared unto the eleven as they sat at meat, and upbraided them with their unbelief and hardness of heart, because they believed not them which had seen him after he was risen
Luk 24:25 – Then he said unto them, O fools, and slow of heart to believe all that the prophets have spoken
Jesus even marvelled that men did not believe:
Mar 6:6 – And he marvelled because of their unbelief. And he went round about the villages, teaching.
God condemns those who do not believe, holding them responsible:
Mar 16:16 – He that believeth and is baptized shall be saved; but he that believeth not shall be damned.
All of this is consistent with, and indicative of, faith being a free will choice of man. It makes no sense at all in the perspective that faith is an irresistible gift from God, making unbelief God’s fault for not granting the gift of faith.