# as the Lord has given each one his portion

"as the Lord has assigned each one his life"

# each one

"each believer"

# let each one walk as God has called him

"each one should live as he was when he became a Christian." or "each one should live as God has instructed him to" or "each one should follow God's commands as he lives his life"

# This is my rule in all the churches

Paul was teaching believers in all the churches to act in this manner.