# a hard man

Possible meanings are 1) a man who demands much from other people or 2) a man who does not treat others well.

# You reap where you did not sow, and you harvest where you did not scatter

This refers to a farmer who gathers crops that other people have planted. The servant uses this metaphor to accuse the master of taking what rightfully belongs to others. 

# scatter

"scatter seed." This refers to sowing seed by gently throwing handfuls of it onto the soil.