No man] Luke 16. 13. God will be served with the whole man.
can serve two masters] Which jar, or have contrary employments: for one man may serve two loving partners, whose work is the same.
either he will hate the one, &c.] Either his inward affection will cleave more to the one then to the other; or if it be possible to love both alike, yet in outward actions he must sometimes neglect the ones command, while he obeys the others.
mammon] That is, riches.