I have used this brilliant quote before but it is worth highlighting again. It comes from the introduction to Abraham Kuyper’s delightful collection of devotions: To Be Near Unto God.
Love for God may be fine sentiment. It may be sincere and capable of inspiring holy enthusiasm, while the soul is still a stranger to fellowship with the eternal, and ignorant of the secret walk with God. The great God may still not be your God. Your heart may still not be attuned to the passionate outburst of delight: I love the Lord. For love of God in general is so largely love for the idea of God, love for the Fountain of life, the Source of all good, the Watcher of Israel who never slumbers; in brief, love for him who, whatever else changes, abides the same eternally.
But when the heart can say: I love the Lord, the idea of the Eternal becomes personified. Then God becomes the Shepherd who leads us, the Father who spiritually begat us, the covenant-God to whom we sustain the covenant relation, the Friend who offers us friendship, the Lord whom we serve, the God of our trust, who is no longer merely God, but our God.
Abraham Kuyper, To Be Near Unto God, Kindle Edition.