Psalm 86 begins with a plea to the Lord for help, a plea not based on anything done to deserve help but rather on the nature of the Lord--good, forgiving, and abounding in steadfast love. The psalmist continues by recording the unique greatness of the Lord, and how everybody--all nations--recognize this greatness.
In verse 11, we have two more requests: Teach me your way, O Lord, that I may walk in your truth; give me an undivided heart to revere your name. The psalmist wants to know more about God so as to live the kind of life that God would want. Moreover, to live that kind of life, the psalmist is going to have to give up other distractions.
After the requests come expression of gratitude including a reassertion of God's love and care.
But, even with the knowledge that God is powerful and loving, the psalmist recognizes that life can be far from perfect, "O God, the insolent rise up against me; a band of ruffians seeks my life, and they don't care about you at all."
In this time of difficulty, the psalmist asks God, "Turn to me and be gracious to me; give me strength; save me."
When we are in our own times of difficulty, we can pray this psalm, we can ask for Lord's favor, because we also can remember the times that the Lord has helped us and comforted us.
Remember the explanation Jesus gave of the parable of the weeds and his description of what is to come: Then the righteous will shine like the sun in the kingdom of their Father. Let everyone with ears listen.