1At Sāvatthī. Now on that occasion the Blessed One had gone for his day's abiding and was in seclusion. Then the independent brahmas Subrahma and suddhāvasā approached the Blessed One and stood one at each doorpost. Then, referring to the bhikkhu Kokalika, the independent brahma Subrahma recited this verse in the presence of the Blessed One: [n.399] The story of Kokālika is related below at 6:10.

2v.586 "What wise man here would seek to define
An immeasurable one by taking his measure?
He who would measure an immeasurable one
Must be, I think, an obstructed worldling.ʺ [n.400] Spk: The immeasurable one (appameyyam) is the arahant; one takes his measure by determining, "He has this much virtue, this much concentration, this much wisdom." Spkpṭ: The states that make for measurement (pamaṇākārā) are lust, hatred, and delusion, and with their removal it is impossible "to measure" the arahant by way of lust, etc. In this connection see SN41.7 (IV 297,11–14 = MN I 298,8–11).

1Sāvatthinidānaṁ. Tena kho pana samayena bhagavā divāvihāragato hoti paṭisallīno. Atha kho subrahmā ca paccekabrahmā suddhāvāso ca paccekabrahmā yena bhagavā tenupasaṅkamiṁsu; upasaṅkamitvā paccekaṁ dvārabāhaṁ nissāya aṭṭhaṁsu. Atha kho subrahmā paccekabrahmā kokālikaṁ bhikkhuṁ ārabbha bhagavato santike imaṁ gāthaṁ abhāsi:

2"Appameyyaṁ paminanto,
Kodha vidvā vikappaye;
Appameyyaṁ pamāyinaṁ,
Nivutaṁ taṁ maññe puthujjanan"ti.