It is God that girdeth me with strength - Who gives me strength. The word girdeth contains an allusion to the mode of dress among the orientals, the long flowing robe, which was girded up when they ran or labored, that it might not impede them; and, probably, with the additional idea that girding the loins contributed to strength. It is a common custom now for men who run a race, or leap, or engage in a strife of pugilism, to gird or bind up their loins. See Job 40:7, note; and Matthew 5:38-41, notes.
And maketh my way perfect - Gives me complete success in my undertakings; or, enables me so to carry them out that none of them fail.