1. Scripture is often used to interpret other scripture.
2. Figurative language exists in too many places to just ignore (i.e. symbolism, metaphor, anthropomorphic, etc.). To not understand when scripture uses figurative language is in a way not reading in the context of the whole Bible.
3. Romans 8:7-8, 1 Corinthians 2:14, and Isaiah 53:6 show that no one seeks God. How can one go after the world (Eph. 2:1-3) and God at the same time?
1) Yes we use scripture to interpret scripture. Non-germane to our discussion.
2) To dismiss any verse that contradicts man-made doctrine as "figurative" is without merit. Jesus was teaching us that men entering heaven can be blocked by false teaching. This proves both Total Spiritual Inability and Irresistible Grace are mistaken doctrines. So the defense is to change the subject. No sale.
Matthew 23:13 clearly and explicitly teaches Total Spiritual Inability does not apply to all fallen men at all times.
3) No verse, not one, teaches Total Spiritual Inability of all men at all times. None, zip, nada. Lets stick with Matthew 23:13 and when you agree it teaches your doctrine is unbiblical, or explain a reasonable view where it does not teach unregenerate men were entering heaven, then we can move on.