Romans 10:9 states that "with the heart man believeth unto righteousness" but man cannot force faith into his heart. Grace must put faith into the heart. Seeking God for saving faith by the right use of means (attendance to preaching, bible reading, earnest prayer, etc.) is right and good. There is an intellectual, non-saving faith that can reside in the head. Saving faith resides in the heart and expresses itself in works and love.
"The fool hath said in his heart that there is no god". He didn't say it merely in his intellect. Therefore,the fool has unbelief in his heart. Only by the influence of the Spirit of God can unbelief be replaced by genuine, saving faith in the heart.
Seek Him First Indeed The favor of God is precious indeed and worthy of being sought.
Uzzah died because of a failure to seek God that King David acknowledged in 1 Chronicles 15:13.
Seek ye the Lord while he may be found. - Isaiah 55:6