Charles Spurgeon Commentary Matthew 10:7

"And as ye go, preach, saying, The kingdom of heaven is at hand." — Matthew 10:7 (ASV)

Their first work was proclaiming the coming kingdom and preparing the way for the coming King. Those Israelites who were willing might become subjects of this heavenly kingdom and therefore were they informed of its near approach.

And as ye go, preach, saying, The kingdom of heaven is at hand.

That blessed kingdom, which is now set up among people, of which Christ is the King, and I hope many of us are the subjects.

That kingdom was then "at hand."