The word "you" refers to all of the apostles. Languages that have different forms of "you" should use the plural form. (See: [[rc://en/ta/man/translate/figs-you]])
This means that Satan wanted to test the disciples to find something wrong. AT: "test you like someone passes grain through a sieve" (See: [[rc://en/ta/man/translate/figs-metaphor]])
The word "you" here refers specifically to Simon. Languages that have different forms of you should use the singular form. (See: [[rc://en/ta/man/translate/figs-you]])
"Turned back again" is a metonymy for "repented." AT: "After you start following me again" or "After you start serving me again" (See: [[rc://en/ta/man/translate/figs-metonymy]]).