The supernatural character of the present Kingdom is confirmed by the words found in association with it. A number of verbs are used with the Kingdom itself as the subject.
The Kingdom can draw near to men (Matt. 3:2; 4:17; Mark 1:15; etc.); it can come (Matt. 6:10; Luke 17:20; etc.), arrive (Matt. 12:28), appear (Luke 19:11), be active (Matt. 11:12). God can give the Kingdom to men (Matt. 21:43; Luke 12:32), but men do not give the Kingdom to one another. Further, God can take the Kingdom away from men (Matt. 21:43), but men do not take it away from one another, although they can prevent others from entering it. Men can enter the Kingdom (Matt. 5:20; 7:21; Mark 9:47; 10:23; etc.), but they are never said to erect it or to build it. Men can receive the Kingdom (Mark 10:15; Luke 18:17), inherit it (Matt. 25:34), and possess it (Matt. 5:4), but they are never said to establish it. Men can reject the Kingdom, i.e., refuse to receive it (Luke 10:11) or enter it (Matt. 23:13), but they cannot destroy it. They can look for it (Luke 23:51), pray for its coming (Matt. 6:10), and seek it (Matt. 6:33; Luke 12:31), but they cannot bring it. Men may be in the Kingdom (Matt. 5:19; 8:11; Luke 13:29; etc.), but we are not told that the Kingdom grows. Men can do things for the sake of the Kingdom (Matt. 19:12; Luke 18:29) but they are not said to act upon the Kingdom itself. Men can preach the Kingdom (Matt. 10:7; Luke 10:9), but only God can give it to men (Luke 12:32)
The Presence of the Future. George Eldon Ladd. Wm. B. Eerdmans Pub. Co. Grand Rapids, MI. Page 193.