The fourth blessing of the weekday Amidah is called Da'at ("knowledge") and functions as a prayer for understanding from the LORD. Note that this part of the Amidah is only recited during weekdays (the Shabbat and Holiday versions skip this prayer).
Blessing Four: Da'at
"You show favor to a man of knowledge, and You teach understanding to a mortal man. Be gracious to us; for from you is a mind of insight and intelligence. Blessed are You, Adonai, Who favors us with knowledge."