The Jerusalem elders continue to speak to Paul.

## What should we do? ##

The word "we" refers to the elders. (See: [[rc://en/ta/man/translate/figs-exclusive]])

## four men who made a vow ##

This was the kind of vow where the person would not drink alcohol or cut their hair until the end of the set period of time. Alternate translation: "four men who made a promise to God".

## pay their expenses for them ##

The expenses would go towards buying a male and female lamb, a ram, and grain and drink offerings. Alternate translation: "pay for what they will need."

## keep the law ##

"live a life that conforms to the Law of Moses and other Jewish customs"