After Jesus and his disciples leave Capernaum, Jesus reminds the Pharisees, as well as his disciples, what God really expects in marriage and divorce.
# Jesus left that place
Jesus' disciples were traveling with him. They were leaving Capernaum. AT: "Jesus and his disciples left Capernaum" (See: [[rc://en/ta/man/translate/figs-explicit]])
# and to the area beyond the Jordan River
"that was beyond the Jordan River" or "that was across the Jordan River"
# He was teaching them again
The word "them" refers to the crowds.
# he was accustomed to do
"was his custom" or "he usually did"
# What did Moses command you
Moses gave the law to their ancestors, which they now were also supposed to follow. AT: "What did Moses command your ancestors about this"