Read Luke 18:1-8
18 Then Jesus told his disciples a parable to teach them that they should always pray and never become discouraged. 2“In a certain town there was a judge who neither feared God nor respected people. 3And there was a widow in that same town who kept coming to him and pleading for her rights, saying, ‘Help me against my opponent!’ 4For a long time the judge refused to act, but at last he said to himself, ‘Even though I don’t fear God or respect people, 5yet because of all the trouble this widow is giving me, I will see to it that she gets her rights. If I don’t, she will keep on coming and finally wear me out!’ ”
6 And the Lord continued, “Listen to what that corrupt judge said. 7Now, will God not judge in favour of his own people who cry to him day and night for help? Will he be slow to help them? 8I tell you, he will judge in their favour and do it quickly. But will the Son of Man find faith on earth when he comes?”
It is important to realise that this is not a passage about asking until you get. Jesus is saying that the Father is nothing like the corrupt judge - he will do what is right, he will not be slow to help.
Lord help me to know that you are just and good - that my future is safe in your hands.