"To be strong in grace, is to be weak in sin.  It is vitally essential to remember that we need to have our strength and courage renewed daily.  Be strong in the Lord: seek His strength at the beginning of each day-"they that wait upon the Lord shall renew their strength" (Isaiah 40.31).  God does not impart strength to us wholesale: He will not give me strength Monday morning to last through the week.  No, there has to be the daily renewing of our strength, and that strength has to be drawn from the Lord by the actings of faith, appropriating from His "fullness."  The enemies we have to contend with cannot be overcome by human wisdom and might.  Unless we go forth to the conflict continually looking to Christ for all needed supplies of grace, deriving all our vitality from Him, we are sure to be defeated." ~Arthur Walkington Pink, The Christian's Armour~