Psa. 45:2 You are fairer than the sons of men; Grace is poured upon Your lips; Therefore God has blessed You forever.
This is the heart of Davidic worship, he is lost in the beauty of the coming King. Of course he is not speaking of physical beauty. Isaiah said the coming messiah would not be physically attractive.
For He shall grow up before Him as a tender plant, And as a root out of dry ground. He has no form or comeliness; And when we see Him, There is no beauty that we should desire Him. He is despised and rejected by men, A Man of sorrows and acquainted with grief. And we hid, as it were, our faces from Him; He was despised, and we did not esteem Him.
It is a different, unseen spiritual beauty that attracts the elect to the Christ. Here is how Charles Spurgeon describes it.
“Jesus reveals himself when we are pouring forth our affections towards him. It is usually the case that when we are ready Christ appears. If our heart is warm it is an index that the sun is shining, and when we enjoy his heat we shall soon behold his light. In person, but especially in mind and character, the King of saints is peerless in beauty. The Hebrew word is doubled, “Beautiful, beautiful art thou.” Jesus is so emphatically lovely that words must be doubled, strained, yea, exhausted before he can be described. Among the children of men many have through grace been lovely in character, yet they have each had a flaw; but in Jesus we behold every feature of a perfect character in harmonious proportion. He is lovely everywhere, and from every point of view, but never more so than when we view him in conjugal union with his church; then love gives a ravishing flush of glory to his loveliness.”
Before conversion, spiritual things seem dull and unattractive. It is the influence of the Holy Spirit that gives us the perception of this secret beauty of the Lord. David sang about this beauty constantly, it was the “one thing” he loved to sing about. Just think about it; David spoke about uplifted hands in the sanctuary, dancing with all his might, his flesh crying out for the Lord, He even spoke about desiring one thing for the rest of his life. David was hopelessly smitten by the beauty of the Lord. The unanswered question have you been struck by His love?