Charles H. Spurgeon on Psalms 52:9

He compares himself

1. With an olive tree, a tree a ways green, lasting long and fruitful, whose fruit is most useful and grateful: so he paints his future state as joyful, glorious, lasting, and useful and pleasing to men: plainly a reference is made to the royal and prophetic office, in both of which he represents himself as an olive tree, by supplying others with oil through his rule and instruction:

2. With the olive growing luxuriantly, and abounding in spreading bough, and so, spacious and large...

3. But why does he add in the house of God? That he might indicate, unless I am deceived:

(a) That he should possess a dwelling in that place where the house of God was, whence he was now exiled through the calumnies of Doeg and the attacks of Saul stirred up thereby:

(b) That he should perform distinguished service to the house of God, by adorning it, and by restoring religion, now neglected, and practising it with zeal:

(c) That he should derive from God and his favour, whose that house was, all his prosperity:

(d) That he, like a son of God, should rejoice in familiarity with him, and should become heir to his possessions and promises. Hermann Venema.