Ephesians 3:16-19 That he would grant you, according to the riches of his glory, to be strengthened with might by his Spirit in the inner man; That Christ may dwell in your hearts by faith; that ye, being rooted and grounded in love, May be able to comprehend with all saints what is the breadth, and length, and depth, and height; And to know the love of Christ, which passeth knowledge, that ye might be filled with all the fulness of God.
How do you comprehend anything? You see it, hear it, taste it or touch it. As such your ability to comprehend the love of God is born of experience. Our first experience might well be the awareness of the sacrifice that Jesus Christ made to atone for our sins. That would be a mental awareness, the power of reasoning to achieve a desired condition which will change your circumstances. Being saved is a powerful motivation.
Being saved from the penalty of sin is only one expression. How about being saved from the power of sin? Have you experienced any power over sin, so that it no longer controls your life? Our comprehension of God’s love towards us means that His expression of that love continues every day and in every way in order for us to experience all that God’s love is and can be in this new life in Christ.
Look to the opening line above. We have a grant from God. A grant does not need to be bought nor repaid. He does so by His abundant glory expressed in the life of Jesus Christ. Glory is the essence of who God is and in these later days expressed through Christ. The purpose is then stated, to strengthen us by the power of His might. We do not have the power to express this great agapao love on our own. We have not yet fully experienced this great love. The inner man is strengthened by this love. The next expression indicates how. Our hearts have been rooted and grounded by the love of God, the agape.