Luke 17:21 nor will they say, ‘Look, here it is!’ or, ‘There it is!’ For behold, the kingdom of God is in your midst."
The kingdom of heaven is planted within us as a seed and it is intended to grow and expand within us and on the earth.
2 Peter 1:3,7,8 seeing that His divine power has granted to us everything pertaining to life and godliness, through the true knowledge of Him who called us by His own glory and excellence. 7and in your godliness, brotherly kindness, and in your brotherly kindness, love. 8For if these qualities are yours and are increasing, they render you neither useless nor unfruitful in the true knowledge of our Lord Jesus Christ.
We are called to glory and virtue; We show others how to be neither barren or unfruitful in the ways of God.
Colossians 2:7,13 having been firmly rooted and now being built up in Him and established £in your faith, just as you were instructed, and overflowing with gratitude. 13When you were dead in your transgressions and the uncircumcision of your flesh, He made you alive together with Him, having forgiven all our transgressions,
Since we are rooted and built up in Christ Jesus we are able to teach others (saved and unsaved) of a higher life in the Lord Jesus.
Psalm 145:11 - I shall speak of the glory of Your Kingdom and talk of Your power, to make known to the sons of men God's might deeds and the glorious majesty of His Kingdom.