The term "Father of Rain and Dew" is not a direct title found in the Bible, but it reflects the biblical understanding of God as the sovereign Creator and Sustainer of the natural world, including the provision of rain and dew. In the Scriptures, God is often depicted as the one who controls the weather and provides for the earth's fertility, which is essential for life and agriculture.

Biblical References:

1. God as the Provider of Rain:
In the Bible, God is frequently acknowledged as the one who sends rain upon the earth. In the book of Job, Elihu speaks of God's control over the weather: "He loads the clouds with moisture; He scatters His lightning through them. They swirl about, whirling at His direction, accomplishing all that He commands over the face of all the earth. Whether for punishment or for His land, He accomplishes this in His loving devotion" (Job 37:11-13). This passage highlights God's authority over the elements and His purposeful use of rain.

2. Rain as a Blessing:
Rain is often seen as a blessing from God, a sign of His favor and provision. In Deuteronomy, God promises the Israelites that if they obey His commandments, He will bless their land with rain: "Then I will provide rain for your land in season—the autumn and spring rains—that you may gather your grain, new wine, and oil" (Deuteronomy 11:14). This promise underscores the connection between obedience to God and the receipt of His blessings.

3. Dew as a Symbol of Blessing:
Dew, like rain, is also a symbol of divine blessing and sustenance. In the patriarchal blessing given by Isaac to Jacob, dew is mentioned as a part of the abundance promised: "May God give to you the dew of heaven and the richness of the earth—an abundance of grain and new wine" (Genesis 27:28). Dew represents the gentle and consistent provision of God, sustaining life even in times of drought.

4. God's Sovereignty Over Nature:
The Psalms frequently celebrate God's sovereignty over creation, including His control over rain and dew. Psalm 147:8 declares, "He covers the sky with clouds; He prepares rain for the earth; He makes grass grow on the hills" . This verse emphasizes God's active role in nurturing the earth and providing for all living creatures.

5. Prophetic Imagery:
In the prophetic literature, rain and dew are sometimes used metaphorically to describe spiritual truths. For instance, Hosea 14:5 states, "I will be like the dew to Israel; he will blossom like the lily and take root like the cedars of Lebanon" . Here, dew symbolizes God's refreshing and life-giving presence to His people, leading to spiritual renewal and growth.

Theological Significance:

The concept of God as the "Father of Rain and Dew" reflects a deep theological truth about His providential care and the intimate relationship between the Creator and His creation. It underscores the belief that God is not distant or detached but actively involved in the world, providing for the needs of His creatures and sustaining the natural order. This understanding calls believers to trust in God's provision and to recognize His hand in the blessings of the natural world.