The kingdom being like a "mustard seed" resembles with the "stone" of Daniel 2 :35,44
first the stone was little , after it kick the big statue it grows as a mountain
this is the way the kingdom will "come on earth"
we know from Bible that the kingdom is to be given to the "people of saints" (Daniel 7:27) , that is , a group of christians , the "least ones" brothers of Christ
for the beginning this group have to be very little known and with little power , but helped by God
they have to face a big giant / big statue , that is , another humangroup claiming that they are/represent the kingdom
now, we know the big statue/wery known group claiming that they are the kingdom : it is an worldwide organisation known as WTB&TS
what remains to be seen is the "stone" or the insignifiant group who, helped by God's spirit , and using in a right way God's word , have to "kick" the big statue together with its pretention to be the kingdom of God , using the "word" and as a result the big statue/organisation has to be broken in pieces ... under our sight
now , we all have to be in watch for , when we will see that , will have to give glory to God for He has accomplished His word
wantingtruth