God will provide for the ruggedness of their way.

They will have a divine blessing which would not be theirs but for the roughness and ruggedness.

The Hebrew parallelism gives the same promise, without figure, in the remaining words of the same verse: "As thy days so shall thy strength be." Be sure, if your path is rougher than mine, you will get more help than I will.

There is a most delicate connection between earth's needs and heaven's grace.
Days of struggle get more grace than calm, quiet days.

When night comes stars shine out which never would have appeared had not the sun gone down.