Isaiah 58:11 NKJV
The LORD will guide you continually, and satisfy your soul in drought, And strengthen your bones; You shall be like a watered garden, And like a spring of water, whose waters do not fail.
For God's people who would choose the kind of fasting God approved of, there were promises of various blessings. One of those blessings said they would be "like a watered garden, and like a spring of water, whose waters do not fail." When we do things God's way, we will be watered by the Holy Spirit for productivity. Then we will be like a spring that never runs out of water - a means that is always available to bless others by the anointing that abides in us.