āpane - personally; nā kaile - if not practiced; dharma - religion; śikhāna - the teaching; nā yāya - does not advance; ei - this; ta' - certainly; siddhānta - conclusion; gītā - in the Bhagavad-gītā; bhāgavate - in Śrīmad-Bhāgavatam; gāya - they sing.

“Unless one practices devotional service himself, he cannot teach it to others. This conclusion is indeed confirmed throughout the Gītā and Bhāgavatam.