Jesus' answer to questions regarding the coming of the kingdom of God points to the dynamic character of that kingdom. In this passage, Jesus presents the kingdom both as present reality (v. 21) and as yet to be fully revealed (vv. 22-37). Jesus often presented the kingdom as a hidden and growing reality (Matt. 13:31-33), which is both present and future. In the earthly ministry of Jesus, the kingdom is already present (11:20), but the full reality of the kingdom is yet to be manifested (cf. 19:11). Christians are to pray for the full realization of God's kingdom (11:2). See theological note "The Kingdom of God."Here is the theological note "The Kingdom of God":
The theme of the kingdom of God runs through both Testaments, focusing God's purpose for world history. In the Old Testament God declared that He would exercise His kingship (His sovereignty, Dan. 4:34, 35) by ruling over people's lives and circumstances through His chosen King, the Davidic Messiah (Is. 9:6, 7) in a golden age of blessing. This kingdom came with Jesus and is known wherever the lordship of Jesus is acknowledged. Jesus is enthroned in heaven as ruler over all things (Matt. 28:18; Col. 1:13), King of kings and Lord of lords (Rev. 17:14; 19:16). The golden age of blessing is an era of salvation from sin and fellowship with God leading to a future state of complete joy in a reconstructed universe. The kingdom is present in its beginnings but future in its fullness; in one sense here already, but in the richest sense still to come (Luke 11:20; 16:16; 17:21; 22:16, 18, 29, 30).
The kingdom came bringing mercy but also judgment, just as John the Baptist, its forerunner, had said (Matt. 3:1-12). Those who received Jesus' word and put their destiny in His hands found mercy, while those who would not were judged.
The task of the church is to make the invisible kingdom visible through faithful Christian living and witness. The gospel of Christ is still the gospel of the kingdom (Matt. 4:23; 24:14; Acts 20:25; 28:23, 31), the good news of righteousness, peace, and joy in the Holy Spirit. The church makes its message credible by manifesting the reality of kingdom life.
The coming of the kingdom meant a new stage in God's redemptive program. All that was typical, temporary, and imperfect in the arrangements God made for Israel's communion with Him became things of the past. God's Israel, the seed of Abraham, was revealed as the company of believers in Jesus (Gal. 3:16, 26-29). The Spirit was poured out, and a new way of life became a reality for this world. A new internationalism of global church fellowship and global evangelism was born (Matt. 28:19, 20; Eph. 2:11-18; 3:6, 14, 15; Col. 1:18, 29; Rev. 5:9, 10; 7:9).