Matthew 12:6 But I say unto you, That in this place is one greater than the temple. [kjv]
λεγω δε υμιν οτι του ιερου μειζον εστιν ωδε [gnt]
… maior … [v]

Jesus (and others) on many occasions makes use of comparisons as to one entity being greater or less than another entity. One can be "
weighed in the balance".
The idea of something being "
greater" than something else is used often in the Bible, by Jesus and others. In context, the word can mean "
greater" or "
greatest". There is a difference that can be important.