John Gill Commentary Luke 5:14

"And he charged him to tell no man: but go thy way, and show thyself to the priest, and offer for thy cleansing, according as Moses commanded, for a testimony unto them." — Luke 5:14 (ASV)

And he charged him to tell no man
Of his cure, and by whom he received it;

but go show yourself to the priest .
The Syriac and Persic versions read, "to the priests: and offer for your cleansing, according as Moses has commanded, for a testimony to them"; (See Gill on Matthew 8:4).