Charles H. Spurgeon on Psalms 132:18

Upon himself shall the crown flourish. This idea seems to be taken from the nature of the ancient crowns bestowed upon conquerors. From the earliest periods of history, the laurel, olive, ivy, etc., furnished crowns to adorn the heads of heroes, who had conquered in the field of battle, gained the prize in the race, or performed some other important service to the public. These were the dear bought rewards of the most heroic exploits of antiquity. This sets the propriety of the phrase in full view. The idea of a crown of gold and jewels flourishing, is at least unnatural; whereas, flourishing is natural to laurels, oaks, etc. These were put upon the heads of the victors ill full verdure, and their merit seemed to make them flourish on their heads, in fresher green. The literal crown which Jesus wore was also of the vegetable kind, and the thorn of sorrow never flourished in such rigour as on his head. Now he has got the crown of life, which shall not fade away, like the perishing verdure of the crowns of other heroes. It shall flourish for ever, with all the rigour of immortality, and bring forth all the olive fruits of peace for his people. Its branches shall spread, and furnish crowns for all the victors in the spiritual warfare. —Alexander Pirie, —1804.