And Jesus sternly charged him and sent him away at once,
We have here the story of Christ's cleansing a leper, which we had before, Mat 8:2-4. It teaches us, 1. How to apply ourselves to Christ; come as this leper did, (1.) With great humility; this leper came beseeching him, and kneeling down to him (Mar 1:40); whether giving divine honour to him as God, or rather a less degree of respect as a great...
Commenting on Mark 1:40-45
And he straitly charged him;.... Either with the sin which had been the cause of this leprosy, and to take care that he sinned that sin no more, lest a worse evil should befall him; for sin was usually the cause of leprosy, as the cases of Miriam, Gehazi, and Uzziah show. It is said to come upon men for seven things.
Straitly charged - See the reason for this, Mat 8:4 (note). This verse is wanting in two copies of the Itala.