'Strictly' in the Bible

And he strictly charged him, and straightway sent him out,

Jesus sternly warned them [again and again] not to tell who He was.

But Jesus strictly ordered them not to let anyone know about this. He also told them to give her something to eat.

And He strictly warned them to tell no one about Him.

As they were coming down from the mountain, He very strictly forbad them to tell any one what they had seen "until after the Son of Man has risen from among the dead."