Rashi (from Avodah Zarah 44a): A crown that fits me ¹ . It is testimony for me and my seed who are proper to rule.

Radak: This knowledge and Hashgachah was a gift from You.

Malbim: The wonders and Hashgachah Pratis were for me.

Rashi (from Avodah Zarah 44a), Radak, Malbim: This [testimony, gift or wonders and Hashgachah - refer to 119:56:1:1-3) was a reward for guarding Your Mitzvos. Radak - the reward of a Mitzvah is a Mitzvah (Avos 4:2).