Of course you want God to help you sell your house. There is nothing that we do that we do not do with God’s help. The truth is, though, you have to realize that if you don’t wind up putting God in charge of the situation, you’ll have been doing all of the talking and none of the listening.
If you do that, realize that you open yourself to the Holy Spirit. You open yourself to lowering the price because it is the right thing to do. You open yourself to seeing if God has an intended purpose for a windfall if the buyer offers more than you expected, rather than automatically assuming it is there to be used at your own pleasure. You open yourself to persevering with the work required to keep the house’s curb appeal up, as cooperation with what you’ve asked God to do. You open yourself to honesty about any problems the home has. You open yourself to making it a sale according to God’s ways. I don’t see how that’s going to be a bad thing.
Go ahead, ask away!