I trust God is keeping you very near Himself, and that He maintains the freshness of His grace and love in your soul. We need to be constantly renewed; without that, spiritual energy does not keep up. "They that wait upon the Lord shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary; and they shall walk, and not faint." Isa. 40:3131But they that wait upon the Lord shall renew their strength; they shall mount up with wings as eagles; they shall run, and not be weary; and they shall walk, and not faint. (Isaiah 40:31).
It is not progress in knowledge that affects that, although this is profitable for helping others in the truth, but what is important is keeping oneself near God. In this place love maintains itself and grows— His love in our souls, which finds its activity and comfort in exercising itself towards poor sinners and towards the saints. One seeks the glory of the Lord in them, and their own well-being.
God gives you to enjoy Himself, but God reveals Himself not only as infinite blessedness in Himself, but also in the activities of His love in which He finds His delight. When His love is shed abroad in our hearts, we enjoy assuredly what He is, but this love is active towards us by His grace.
Activity, unless renewing itself in communion with Him, may be sincere, but will degenerate into routine and into a habit of acting. It may be even dangerous if the soul gets far from God without knowing it. But abiding in His love and His Word abiding in us, we can count on an answer to the request we address to Him in our hearts.