We must persevere in prayer. Subjective clues have reference to our own motives. Verses 14 and 15 indicate that if there is any jealousy or selfish ambition involved on our part, then it cannot be the wisdom from God. The Christian who has wisdom from above is willing to be wronged and walked-on rather than defend his own personal rights and interests. Verse 13 says the same thing in a positive way.
Meekness has to do with inner attitudes rather than outward actions.
If we are characterized by meekness, we will be in tune with the wisdom from above which God longs to share with us. We will not only miss out on the answers from above, but, as verse 16 indicates, our lives will be characterized by disorder and worthless activities. In fact, a person so characterized should not even expect an answer from heaven. Objectively, the wisdom from above is clearly defined in verse 17. The Lord never asks us to do anything shady or under the table.