What does Matthew 8:7 mean?

Jesus said to him, “See that you tell nobody, but go, show yourself to the priest, and offer the gift that Moses commanded, as a testimony to them.”

When he came into Capernaum, a centurion came to him, asking him,

and saying, “Lord, my servant lies in the house paralyzed, grievously tormented.”

The centurion answered, “Lord, I’m not worthy for you to come under my roof. Just say the word, and my servant will be healed.

For I am also a man under authority, having under myself soldiers. I tell this one, ‘Go,’ and he goes; and tell another, ‘Come,’ and he comes; and tell my servant, ‘Do this,’ and he does it.”

When Jesus heard it, he marveled, and said to those who followed, “Most certainly I tell you, I haven’t found so great a faith, not even in Israel.