NET
37 Now when they heard this, they were acutely distressed and said to Peter and the rest of the apostles, “What should we do, brothers?”
Darby
37 And having heard [it] they were pricked in heart, and said to Peter and the other apostles, What shall we do, brethren?
KJV
37 Now when they heard [this], they were pricked in their heart, and said unto Peter and to the rest of the apostles, Men [and] brethren, what shall we do?