20 For the kingdom of God is not in word, but in power.
1 Corinthians 4:20 Cross References - Godbey
Romans 1:16
16 For I am not ashamed of the gospel: for it is the power of God unto salvation to every one that believeth; to the Jew first, and also to the Greek.
Romans 14:17
17 For the kingdom of God is not meat and drink, but righteousness and peace and joy in the Holy Ghost.
Romans 15:19
19 in the power of signs and wonders, in the power of the Spirit of God, so that from Jerusalem, and around about even unto Illyricum, I have fully preached the gospel of Christ;
1 Corinthians 1:24
24 but to you who are called, both Jews and Greeks, Christ the power of God, and the wisdom of God.
1 Corinthians 2:4
4 And my speech and my preaching were not in the persuasive words of wisdom, but in the demonstration of the Spirit and the power:
2 Corinthians 10:4-5
1 Thessalonians 1:5
5 because our gospel came not unto you in word only, but in power, and in the Holy Ghost, and in much assurance; as you know what sort we were among you for your sakes.