Why are you so slow to take the victory that is in Jesus Christ?

Why are you so slow to take what the Lord has given you?

And all the meeting of the children of Israel came together at Shiloh and put up the Tent of meeting there: and the land was crushed before them.
Joshua 18:1
Then Joshua said to the children of Israel, Why are you so slow to go in and take up your heritage in the land which the Lord, the God of your fathers, has given you?
Joshua 18:3