US-P17.037ab ।US-P17.037cd ॥
In plain words
The śruti says the Self "seems to think" — that is its changelessness. It says the Self "seems to stir" — that too. It says "here a thief is no thief" — that is its purity. It says "untouched by merit, untouched by evil" — that too. Scripture itself is the ground.
Close to the Sanskrit
'It thinks' — thus, changelessness; likewise 'it stirs' also. 'Here a thief' — thus, purity; and likewise 'untouched' — from the śruti.