'Kingdom of Heaven' in the Bible

But he said unto them, I must preach the glad tidings of the kingdom of heaven in other cities also: for on this service am I sent.

For I say to you, Among those born of women, there is no prophet greater than John the Immerser. But the least in the kingdom of heaven is greater than he.

"It is too bad for you teachers of the law of Moses! For you took away the key of knowledge [i.e., preventing people from understanding God's plan]. You did not enter [the kingdom of heaven. See Matt. 23:13] yourselves and [you even] prevented those who [wanted] to enter [to get in]."

But Jesus sent for them, saying, Let the children come to me, and do not keep them away, for of such is the kingdom of heaven.