Luke 16:16 The law and the prophets were until John: since that time the kingdom of God is preached, and every man presseth into it.
Hebrews 10:1 For the law having a shadow of good things to come, and not the very image of the things, can never with those sacrifices which they offered year by year continually make the comers thereunto perfect.
Galatians 3:19 Wherefore then serveth the law? It was added because of transgressions, till the seed should come to whom the promise was made; and it was ordained by angels in the hand of a mediator.
John 8:35 And the servant abideth not in the house for ever but the Son abideth ever.
Schoolmaster from Pulpit Commentary I only add this cause I just learned it in the last couple days, but there is much interesting stuff on this word.
Paedagogus has no equivalent in the English language; "pedagogue," "schoolmaster," "tutor," "guardian," are all inadequate, covering each one an area of thought more or less quite different. "Tutor," as the masculine of "governess," comes perhaps nearest; but a tutor to a gentleman's children is generally an educated man, and often of like rank in life with those he is with whereas a paedagogus was usually a slave - an element of thought probably very near to the apostle's consciousness in his present use of the term.