Mark 1:43

Modern

Jesus promptly sent him away with a stern warning:

Traditional

And he straitly charged him, and forthwith sent him away;

Literal

And having sternly warned him, immediately He sent him out.

Latin

Et comminatus est ei, statimque ejecit illum,

Greek

English

Jesus promptly sent him away with a stern warning:

Jesus instructed the man to visit the priest to confirm his healing and make the required sacrificial offering. This would act as public proof of his healing.
Despite the severe warning Jesus gave, the man went and told people what happened to him. As a result, Jesus could not enter the town and had to preach in more remote places. Jesus became widely known, and people from many places came to see him (3:7–8).

Matthew 9:30
And their eyes were opened. Jesus warned them sternly, “See that no one finds out about this!”
Mark 5:43
Then Jesus gave strict orders that no one should know about this, and He told them to give her something to eat.
Luke 8:56
Her parents were astounded, but Jesus ordered them not to tell anyone what had happened.
Mark 3:12
But He warned them sternly not to make Him known.
Mark 7:36
Jesus ordered them not to tell anyone. But the more He ordered them, the more widely they proclaimed it.