Psalm 16:2: טוֹבָתִי בַּל עָלֶיךָ

This is a translation question from a student for Dr. Buth:Dear Dr. Buth,Last night i was reading Psalm 16 and struggled with some difficultverses. I would like to seek your opinion on verse two: אָמַרְתְּ לַיהוָהאֲדֹנָי אָתָּה טוֹבָתִי, בַּל-עָלֶיךָA straightforward reading seems strange and doesn't make sense: my welfare is not upon you.BDB interprets this [...]