Mat 12:27 And if I by Beelzebub cast out devils, by whom do your children cast [them] out? therefore they shall be your judges.

I personally love it when Christ says something that leaves me scratching my head. First, why draw a distinction between Satan and Beelzebub? Then, whose children is casting out devils?

"Beelzebub," like "Satanas" is a word of Aramaic origin. It means "lord of the house," but is a homonym for "lore of the flies." It is derives from the name of a Philistine deity, Ba'al Zebul, "lord of the high places." Zebûb is a Hebrew collective noun meaning "flies." Only in Christian times did it become a synonym for Satan.

"Cast out" is ekballô, which means to "throw out," "cast out," "throw away," "caste aside," or "strike out."

"Devils" is daimonion, which means "divinity," "divine power," "a lower divine being," and "evil spirit." "Evil spirit" is a New Testament usage or interpretation.

The phrase "therefore, they shall be your judges" is actually, touto (this, that) dia (through, by means of) autos (themselves) esomai ("I shall be"-the first person future form of "to be") humon (your) kritês (arbiter, umpire, judge of a contest). So a more accurate translation is "That by means of them (your children) I shall be your judge."

A transliteration of this whole phrase directly from the Greek is: "And if I by Beelzebub cast out demons by whom your children are thrown away that though them I shall be your judge."

Christ is saying something more complicated than the usual translation. It is confusing because, as it so often the case, there is a play on words here, using ekballo the first time to mean "cast out" but the second time to mean "throw out" or "throw away," which is its usual meaning when not applied to demons.

Remember the context here, Christ was healing the people brought to him who were "possessed" in some way. These people were usually crippled children brought by their parents. Christ is saying that if he is curing these children by Beelzebub it is because he is acting as an arbiter because the devil and their parents. In other words, Beelzebub would cure these children to reward these parents for their behavior.