Yes, there are some trying and dark times ahead. Yes, it will take much effort and time - more time, truthfully, than you or I personally have left in our lives. But the battle does belong to the Lord, and we must understand that He is not merely the God of Abraham, but the God of Abraham, Isaac and Jacob. He is the God who builds generation upon generation. And you shall write them on the doorposts of your house and on your gates, so that your days and the days of your sons may be multiplied on the land which your Lord swore to your forefathers to give them, as the heavens remain above the earth.
Time is on the side of the righteous for at least two reasons.
He will give us time. This is not the case with the wicked. He gives us time. His family will inherit the land. They will bear fruit long after her time is complete.