David appealed to God for preservation as a dependent, needy believer who sought to walk in trust and obedience with his God. He viewed God's granting his request as grace, not something God owed him. He looked forward to rejoicing when the answer came.
David's attitude of humility comes through in the terms he used in addressing God in this psalm. Seven times he called God his Lord or Master (Heb. adonay), a title that stresses His sovereignty over David (vv. 3, 4, 5, 8, 9, 12, and 15). This Hebrew title appears as "Lord"in most English translations whereas "Yahweh"translates as "LORD."
The psalmist was sure God would respond to his prayer (v. 7). The basis of his confidence was the fact that Yahweh is the only God and that He does great things.