Not only in knowledge shall love grow, but "in all discernment," or perception, as it might be rendered. There may be instances in which, with our best wisdom, we find it hard to disentangle clear principles, or state plain grounds which rule the case; yet love, growing and exercised, has its percipiency: it has that accomplished tact, that quick experienced taste, that fine sensibility to what befriends and what opposes truth and right, which will lead to right distinctions in practice. So you discriminate by the sense of taste things that differ, though you can give no reason to another, but can only say, "I perceive it." In this sense "he that is spiritual judgeth all things."
For all this the aid of the Holy Spirit is held out to us, as we may see in 1 John ii. He makes love to grow, and under that master influence unfolds the needed wisdom also. So comes the wisdom "from above, which is first pure, then peaceable, gentle, and easy to be entreated, full of mercy and of good fruits, without partiality and without hypocrisy" (James iii. 17). It is hidden from many wise and prudent, but God has often revealed it unto babes.
"Now I would have you know, brethren, that the things which happened unto me have fallen out rather unto the progress of the gospel; so that my bonds became manifest in Christ throughout the whole prætorian guard, and to all the rest; and that most of the brethren in the Lord, being confident through my bonds, are more abundantly bold to speak the word of God without fear. Some indeed preach Christ even of envy and strife; and some also of good will: the one do it of love, knowing that I am set for the defence of the gospel: but the other proclaim Christ of faction, not sincerely, thinking to raise up affliction for me in my bonds. What then? only that in every way, whether in pretence or in truth, Christ is proclaimed; and therein I rejoice, yea, and will rejoice. For I know that this shall turn to my salvation, through your supplication and the supply of the Spirit of Jesus Christ, according to my earnest expectation and hope, that in nothing shall I be put to shame, but that with all boldness, as always, so now also Christ shall be magnified in my body, whether by life, or by death."--PHIL. i. 12-20 (R.V.).