"There is a river whose streams make glad the city of God,
the holy place where the Most High dwells.
God is within her, she will not fall;
God will help her at break of day."
As the sons of Korah wrote this they were thinking of Jerusalem. That was the holy place where the Most High dwells. They here were continuing to praise the God who was their refuge and strength, and in ancient times one of the ways you had strength was to have a ready supply of water. Even today, in places like Israel (or South Dakota), it is important to have a source of water as there can be dry times. The sons of Korah were saying that God was the source of water for His people.
In the Bible water is looked on as the source of life, but not just physical life. It was looked on as the source of spiritual life and growth as well. Jesus talked about being grafted in the vine. Being grafted meant that the vine supplied you with life-giving water. As you were connected to the vine you would be a fruitful branch because of the water and nutrients being supplied to you. This is the river the sons of Korah were talking about, the streams of living water that flow from God.
In our front yard there are three patches of grass that are greener and thicker than the rest. Two of them are around our newly planted trees, which are watered daily. I take care of that. It is the third patch that is interesting. It starts at the intersection of our front sidewalk and the driveway and flows out in an expanding mass from there into the yard. It's coming from the drain spout water flowing into the yard. That bit of water that comes every few days is making that one area of grass greener and thicker than the rest.
How about your life? Are you connected to the vine? Do you rejoice in having the streams of water flowing into your life? Does your life look "greener and thicker" than others? If not, ask God to dwell within you. That is the key. All it takes is receiving His Son as your Savior and He will dwell with you, bringing you the streams of living water and the blessings of a life with Him.