Mk. 3:25. And if a house is divided against itself, that house will not be able to stand;
Mk. 3:26. And if Satan has risen up against himself and is divided, he cannot stand, but has come to an end.
Mk. 3:27. No one, having entered the house of the strong man, can plunder his goods, unless he first binds the strong man, and then he will plunder his house. He refutes the hateful Jews with irrefutable examples. How is it possible, he says, for a demon to cast out demons, when even in ordinary houses we see that as long as those living in them are at peace, the houses stand well, but as soon as division occurs in them, they fall? How is it possible, he says, for someone to plunder the goods of the strong man, if he does not first bind him? These words mean the following: the "strong man" is the devil; his "goods" are the people who serve as his vessels. Thus, if someone does not first bind and overthrow the devil, how can he plunder his vessels, that is, the demon-possessed? Therefore, if I am plundering his vessels, that is, freeing people from demonic violence, then it follows that I have first bound and overthrown the demons, and I prove to be their enemy. So how then do you say that I have Beelzebul in Me, that is, that I cast out demons while being their friend and a sorcerer?
Mk. 3:28. Truly I say to you: all sins and blasphemies, with whatever they may blaspheme, will be forgiven the sons of men;
Mk. 3:29. But whoever blasphemes against the Holy Spirit will never be forgiven, but is subject to eternal condemnation.
Mk. 3:30. He said this because they were saying: He has an unclean spirit. What the Lord says here means the following: people who sin in all other matters can still make some excuse and receive forgiveness, through God's condescension to human weakness. For example, those who called the Lord a glutton and a drunkard, a friend of tax collectors and sinners, will receive forgiveness for this. But when they see that He performs undeniable miracles, and yet blaspheme the Holy Spirit, that is, the miraculous works proceeding from the Holy Spirit, then how will they receive forgiveness if they do not repent? When they were scandalized by the flesh of Christ, in that case, even if they did not repent, they will be forgiven as people who were led astray; but when they saw Him performing the works of God and still blasphemed, how will they be forgiven if they remain unrepentant?
Mk. 3:31. And His Mother and brothers came, and standing outside the house, they sent to Him, calling Him.
Mk. 3:32. The crowd was sitting around Him. And they said to Him: Behold, Your Mother and Your brothers and Your sisters are outside, asking for You.
Mk. 3:33. And He answered them: "Who is My Mother and My brothers?"
Mk. 3:34. And looking around at those sitting around Him, He says: behold My mother and My brothers;
Mk. 3:35. For whoever does the will of God, that person is my brother and sister and mother. The brothers of the Lord came out of envy to seize Him, as one who was mad and possessed. And His Mother probably came out of a sense of honor to draw Him away from teaching, thus showing the people that she had authority over Him whom they admired and could draw Him away from teaching. But the Lord answers: It will be of no benefit to My Mother to be My Mother if She does not possess all the virtues within Herself. Likewise, kinship will be of no benefit to My brothers. For only those are true relatives of Christ who do the will of God. So in saying this, He does not disown His Mother, but shows that She will be worthy of honor not merely for giving birth alone, but also for every other good deed: for if She did not have this, others would have seized the honor of kinship before Her.