17 Here καί (kai) has been translated as “Then” to reflect the sequence of events.
18 Grk “he”; the referent (Peter) has been specified in the translation for clarity.
19 Grk “Peter taking hold of him … raised him up.” The participle πιάσας (piasas) has been translated as a finite verb due to requirements of contemporary English style.
20 Grk “his”; the referent (the man) has been specified in the translation for clarity.
21 At once the man’s feet and ankles were made strong. Note that despite the past lameness, the man is immediately able to walk. The restoration of his ability to walk pictures the presence of a renewed walk, a fresh start at life; this was far more than money would have given him.

In other versions

And he took him by the right hand and raised him up, and immediately his feet and ankles were made strong.

Taking him by the right hand, he helped him up, and instantly the man’s feet and ankles became strong.

Then, taking him by the right hand he raised him up, and at once his feet and ankles became strong.

Then Peter took the lame man by the right hand and helped him up. And as he did, the man’s feet and ankles were instantly healed and strengthened.

And taking hold of him by the right hand, he raised him up, and immediately his feet and ankles were made strong.

And he took him by the right hand, and lifted him up: and immediately his feet and ancle bones received strength.

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