God's grace

I read Psalm 86:1-7 in a new way this morning based on the question in my study book:

David was a man who was desperately aware if his need for God's grace and wasn't afraid to ask for it. Underline each phrase in this passage that refers to David asking God for help. Circle (I'm gonna bold them here) each phrase that indicates how God responds when His children call upon Him. (I'm also going to italicize David's description of his cry to God because I think so often we want something from God, but we forget to ask Him for us, like the parable of the woman who continually petitions the judge until he gives her what she's asking for – anyone know where that is???)

Incline your ear, O Lord, and answer me.
for I am poor and needy.
Preserve my life, for I am godly;
Save your servant, who trusts in You – you are my God.
Be gracious to me, O Lord,
for to You do I cry all the day.
Gladden the soul of your servant,
for to You, O Lord, do I lift up my soul.
For You, O Lord, are good and forgiving,
abounding in steadfast love to all who call upon You.
Give ear, O Lord, to my prayer;
listen to my plea for grace.
In the day of my trouble, I call upon you,
For You answer me.