By whom do your children cast them out? - Children, or sons of the prophets, means the disciples of the prophets; and children or sons of the Pharisees, disciples of the Pharisees. From Acts 19:13, Acts 19:14, it is evident there were exorcists among the Jews, and, from our Lord's saying here, it is also evident that the disciples of the Pharisees did east out demons, or, at least, those who educated them wished to have it believed that they had such a power. Our Lord's argument here is extremely conclusive: If the man who casts out demons proves himself thereby to be in league with and influenced by Satan, then your disciples, and you who taught them, are all of you in league with the devil: ye must either give up your assertion, that I cast out demons by Beelzebul, or else admit this conclusion, in its fullest force and latitude, that ye are all children of the devil, and leagued with him against God.

Envy causes persons often to condemn in one, what they approve in another.

Beelzebub.

Matthew 12:24 But when the Pharisees heard it, they said, This fellow does not cast out devils, but by Beelzebub the prince of the devils.

by whom.

Mark 9:38,39 And John answered him, saying, Master, we saw one casting out devils in your name, and he follows not us: and we forbade him...

Luke 9:49,50 And John answered and said, Master, we saw one casting out devils in your name; and we forbade him, because he follows not with us...

Luke 11:19 And if I by Beelzebub cast out devils, by whom do your sons cast them out? therefore shall they be your judges.

Acts 19:13-16 Then certain of the vagabond Jews, exorcists, took on them to call over them which had evil spirits the name of the LORD Jesus, saying...

they.

Matthew 12:41,42 The men of Nineveh shall rise in judgment with this generation, and shall condemn it: because they repented at the preaching of Jonas...

Luke 19:22 And he said to him, Out of your own mouth will I judge you, you wicked servant. You knew that I was an austere man...

Romans 3:19 Now we know that what things soever the law said, it said to them who are under the law: that every mouth may be stopped...

'A Greater than Solomon'
'A greater than Solomon is here.'--MATT. xii. 42. It is condescension in Him to compare Himself with any; yet if any might have been selected, it is that great name. To the Jews Solomon is an ideal figure, who appealed so strongly to popular imagination as to become the centre of endless legends; whose dominion was the very apex of national glory, in recounting whose splendours the historical books seem to be scarce able to restrain their triumph and pride. I. The Man. The story gives us a richly …
Alexander Maclaren—Expositions of Holy Scripture

What are Evidences of Backsliding in Heart.
1. Manifest formality in religious exercises. A stereotyped, formal way of saying and doing things, that is clearly the result of habit, rather than the outgushing of the religious life. This formality will be emotionless and cold as an iceberg, and will evince a total want of earnestness in the performance of religious duty. In prayer and in religious exercises the backslider in heart will pray or praise, or confess, or give thanks with his lips, so that all can hear him, perhaps, but in such a …
Charles G. Finney—The Backslider in Heart

Lesser and Fuller Forms.
Moreover, we have endeavoured to use the fullest form, including the words of those Gospels which have the lesser forms of sentences, except where the sentence ends in a period, in which case have given the least form, so that the larger form of the other Gospels might be made apparent; as, for instance, this sentence, taken from Matt. xii. 47; Mark iii. 32; Luke viii. 20: ^c 20 And it was told him, ^a Behold, thy mother and thy brethren bseek for thee. ^c stand without desiring to see thee. ^a seeking …
J. W. McGarvey—The Four-Fold Gospel