# Twelve years they had served
The events in verses 4-7 happened before verse 3. Your language may have a way of showing this.
# they had served Kedorlaomer
They probably had to pay him taxes and serve in his army. Alternate translation: "they had been under the control of Kedorlaomer" (See: [[rc://en/ta/man/jit/translate-names]])
# they rebelled
"they refused to serve him" or "they stopped serving him"