1. Let them take the comfort which these promises give to them: Fear you not (v. 15); let your hands be strong (v. 9); and both together (v. 13), Fear not, but let your hands be strong. (1.) The difficulties they met with in their work must not drive them from it, nor make them go on heavily in it, for the issue would be good and the reward great. Let this therefore animate them to proceed with vigour and cheerfulness. (2.) The dangers they were exposed to from their enemies must not terrify them; those that have God for them, engaged to do them good, need not fear what man can do against them.