They run on another’s legs – Thomas Brooks

(“The Glorious Day of the Saints Appearance”)

“I will sprinkle clean water on you, and you will be clean; I will cleanse you from all your impurities and from all your idols. I will give you a new heart and put a new spirit in you; I will remove from you your heart of stone and give you a heart of flesh. And I will put My Spirit in you and move you to follow My decrees and be careful to keep My laws.” Ezekiel 36:25-27

The principal reason why Christians persevere in the ways of God against all discouragements, is because they are preserved in the ways of God from spiritual principles, from a principle of inward life and spiritual power. It is true, if Christians only persevered from fleshly, carnal, and external causes they would soon wheel about, and turn apostates, and be base, and what not. But they persevere in the ways of God, from inward principles, as in Jeremiah 32:40, “I will put My fear in their hearts and they shall never depart from Me.” Christians persevere by an inward principle of fear, faith, and love.

Isaiah 40:31, “Those who wait on the Lord shall renew their strength like the eagle; they shall run and not be weary,” because they run on another’s legs namely, the Lord Christ‘s; “and they shall walk and not faint,” because they walk in the strength of Christ.