Bhagavad Gita, Chapter 18, Verse 50

Learn from Me in brief, O son of Kunti, how reaching such perfection, he attains to Brahman, that supreme consummation of knowledge.

Krishna signals here that the real teaching is about to go one step further, beyond perfection into Brahman itself.

This verse functions as a real bridge, promising a deeper conclusion still to come. Nothing about this closing section is treated as finished yet.