30 And they went forth from thence, and passed through Galilee; and he would not that any man should know it. 31 For he taught his disciples, and said unto them, The Son of man is delivered up into the hands of men, and they shall kill him; and when he is killed, after three days he shall rise again. 32 But they understood not the saying, and were afraid to ask him.
33 And they came to Capernaum: and when he was in the house he asked them, What were ye reasoning on the way? 34 But they held their peace: for they had disputed one with another on the way, who [was] the greatest. 35 And he sat down, and called the twelve; and he saith unto them, If any man would be first, he shall be last of all, and servant of all. 36 And he took a little child, and set him in the midst of them: and taking him in his arms, he said unto them, 37 Whosoever shall receive one of such little children in my name, receiveth me: and whosoever receiveth me, receiveth not me, but him that sent me.
38 John said unto him, Teacher, we saw one casting out demons in thy name; and we forbade him, because he followed not us. 39 But Jesus said, Forbid him not: for there is no man who shall do a mighty work in my name, and be able quickly to speak evil of me. 40 For he that is not against us is for us.
Matthew Henry's Commentary on Mark 9:30-40
Commentary on Mark 9:30-40
(Read Mark 9:30-40)
The time of Christ's suffering drew nigh. Had he been delivered into the hands of devils, and they had done this, it had not been so strange; but that men should thus shamefully treat the Son of man, who came to redeem and save them, is wonderful. Still observe that when Christ spake of his death, he always spake of his resurrection, which took the reproach of it from himself, and should have taken the grief of it from his disciples. Many remain ignorant because they are ashamed to inquire. Alas! that while the Saviour teaches so plainly the things which belong to his love and grace, men are so blinded that they understand not his sayings. We shall be called to account about our discourses, and to account for our disputes, especially about being greater than others. Those who are most humble and self-denying, most resemble Christ, and shall be most tenderly owned by him. This Jesus taught them by a sign; whoever shall receive one like this child, receives me. Many have been like the disciples, ready to silence men who have success in preaching to sinners repentance in Christ's name, because they follow not with them. Our Lord blamed the apostles, reminding them that he who wrought miracles in his name would not be likely to hurt his cause. If sinners are brought to repent, to believe in the Saviour, and to live sober, righteous, and godly lives, we then see that the Lord works by the preacher.