I have loved you with an everlasting love.Jeremiah 31:3
Sometimes the Lord Jesus tells His Church His love thoughts. "He does not consider it sufficient to declare them behind her back, but in her very presence He says, 'Behold, you are beautiful, my love.'1 It is true, this is not His ordinary method. He is a wise lover and knows when to hold back the intimation of love and when to declare it; but there are times when He will make no secret of it, times when He will put it beyond all dispute in the souls of His people" (R. Erskine's Sermons).
The Holy Spirit is often pleased, in a most gracious manner, to witness with our spirits to the love of Jesus. He takes the things of Christ and reveals them to us. No voice is heard from the clouds, and no vision is seen in the night, but we have a testimony more certain than either of these
If an angel should fly from heaven and inform the believer personally of the Savior's love for him, the evidence would not be one bit more satisfactory than that which is born in the heart by the Holy Spirit.
Ask the Lord's people who have lived the nearest to the gates of heaven, and they will tell you that they have had seasons when the love of Christ toward them has been a fact so clear and sure that they could no more doubt it than they could question their own existence.
Yes, dear believer, you and I have had times of refreshing from the presence of the Lord, and then our faith has soared to the heights of assurance. We have had confidence to lean our heads upon the shoulder of our Lord, and we have not questioned our Master's affection for us. The dark question, "Lord, is it I that will betray You?" has been put far from us. He has kissed us with the kisses of His mouth and killed our doubts by the closeness of His embrace. His love has been sweeter than wine to our souls.
1) Song of Solomon 1:15