Matthew 11:12 And from the days of John the Baptist until now the kingdom of heaven suffereth violence, and the violent take it by force.

Luke 10:18 And he said unto them, I beheld Satan as lightning fall from heaven.

2 Corinthians 2:11 Lest Satan should get an advantage of us: for we are not ignorant of his devices.

Proverbs 19:21 There are many devices in a man's heart; nevertheless the counsel of the Lord, that shall stand.

1 John 3:20 For if our heart condemn us, God is greater than our heart, and knoweth all things.

1 Timothy 3:5-7 (For if a man know not how to rule his own house, how shall he take care of the church of God?) Not a novice, lest being lifted up with pride he fall into the condemnation of the devil. Moreover he must have a good report of them which are without; lest he fall into reproach and the snare of the devil.

Where is Satan if Jesus him fall from Heaven?

Luke 17:20-21 And when he was demanded of the Pharisees, when the kingdom of God should come, he answered them and said, The kingdom of God cometh not with observation: Neither shall they say, Lo here! or, lo there! for, behold, the kingdom of God is within you.

Who rules the minds of men, taking it with violence, until they're renewed and transformed?

Romans 12:2 And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God.

What is man supposed to be seeking FIRST?

Matthew 6:33 But seek ye first the kingdom of God, and his righteousness; and all these things shall be added unto you.

If the Father's house is the spirit, shouldn't one dwell in it, so that knowledge of the spirit can be added?

Mystery of the Kingdom indeed, but there's also a mystery of iniquity, which blocks the path to the Kingdom.

2 Thessalonians 2:6-8 And now ye know what withholdeth that he might be revealed in his time. For the mystery of iniquity doth already work: only he who now letteth will let, until he be taken out of the way. And then shall that Wicked be revealed, whom the Lord shall consume with the spirit of his mouth, and shall destroy with the brightness of his coming:

Hence the saying 'Get behind me, Satan' Which causes the mind to focus on the things of this world, and not the Kingdom of God within.

Mark 8:33 But when he had turned about and looked on his disciples, he rebuked Peter, saying, Get thee behind me, Satan: for thou savourest not the things that be of God, but the things that be of men.