Only one

Only one – returned.

“As He was going into a village, ten men who had leprosy met Him. They stood at a distance and called out in a loud voice, “Jesus, Master, have pity on us!”

When He saw them, He said, “Go, show yourselves to the priests.” And as they went, they were cleansed.

One of them, when he saw he was healed, came back, praising God in a loud voice. He threw himself at Jesus’ feet and thanked Him—and he was a Samaritan.

Jesus asked, “Were not all ten cleansed? Where are the other nine?

Has no one returned to give praise to God except this foreigner?”

Then He said to him, “Rise and go; your faith has made you well.” (Luke 17:12 – 19)

P/S:

But He still healed them all.

That’s how God is kind even to the “ungrateful” as this verse also highlights:

“But love your enemies, and do good, and lend, expecting nothing in return; and your reward will be great, and you will be sons of the Most High; for He Himself is kind to ungrateful and evil men.” (Luke 6:35)

*and thus to be the sons of the Most High, we ought to practice likewise.