1 Cor. 4 Paul makes a comparison between the apostles and the people of Corinth.  He wants to expose their worldly thinking.
They boast of their spiritual gifts.
They claim to be rich and powerful in the Lord.
They claim wisdom.

But Paul says:
"We are fools for Christ's sake, but you are prudent ( intelligent)  in Christ." 
"We are weak, but you are strong."
We are "without honor"... you are "distinguished" 

The apostles  are:  hungry and thirsty, poor, homeless, abused, toiling, reviled, persecuted, slandered, treated as the "scum of the world".    Yet Paul tells them to ".. be imitators of me".

"For the kingdom of God does not consist in words, but in power."  The Christians at Corinth were boasting of their great status - their many gifts; their great wisdom; their success as a church.  But, in actuality, they were immature, foolish, and useless.... they failed to recognize that they were to be "servants of Christ and stewards of the mysteries of God".... for all they had in Christ was given to them by Christ. They were walking in arrogance, not walking in the ways of Christ.

We can use words - call ourselves Christians; exalt ourselves as gifted members of a church; boast of our knowledge of the Bible; or call attention to ourselves with "religious" speech ... but that is not what the kingdom of God is all about.

The Kingdom of God is given to the poor in spirit, Jesus taught.  The broken, mourning, gentle, seekers of righteousness, the merciful, pure in heart, peacemakers, who are persecuted for the sake of righteousness.... ( Matthew 5).  Here is where true power is found.

Father, thank You for the Word of God given to us and for the Spirit who teaches us and leads us in Truth.  As we meditate on these words, lead us into worship and humble obedience.  Fill us again, Holy Spirit, that we might receive the Kingdom of God in power.  In Jesus we come. Amen.