Eph 3:14-16, 14 For this reason I bow my knees to the Father of our Lord Jesus Christ, 15 …, 16 that He would grant you, according to the riches of His glory, to be strengthened with might through His Spirit in the inner man
Paul in continuation prays to God to strengthen the saints to not faint in tribulations. Believers in Christ need fresh supplies of strength to enable them to exercise God-given grace. As I have actually declared before, we can’t live the gospel, and we can’t live without it. In this gospel is “… the righteousness of God is revealed from faith for faith, as it is written, “The righteous shall live by faith.” (Rom 1:17).
That which is bestowed in us is sustained by the giver so as to run like a well-oiled machine. The might is Christ’s, but by faith, it becomes our strength, Eph 6:10 “Finally, my brethren, be strong in the Lord and in the power of His might.” We become strong not in self but in the Lord, engulfed with His mighty power.
Prayer, if earnest and persisted in, will most surely disclose to us sources of strength of which we should not otherwise have thought. It is the practical means of gaining strength which experience proves to be owned and blessed of God.