Psalms 50:12 (KJV) states, "If I were hungry, I would not tell thee: for the world is mine, and the fulness thereof."

This verse is a part of a larger passage in Psalm 50, which is a psalm of Asaph. Asaph was a Levite who served as a chief musician and one of David's singers. The psalm is a call to worship and a reminder of God's sovereignty and his judgment on the wicked.

In this particular verse, God is addressing the Israelites, reminding them of His ownership of the world and all that is in it. The verse begins with the conditional clause, "If I were hungry," and then states, "I would not tell thee," indicating that even if God were in need of sustenance, He would not require anything from His creation. It is a powerful statement of God's independence and self-sufficiency.

One of the themes that can be derived from this verse is the sovereignty of God. The verse asserts that the entire world belongs to God, and He has no need for anything that is within it. This echoes other passages in the Bible that talk about God's role as the creator and sustainer of all things. It emphasizes the idea that everything in the world belongs to God and is under His control.

Another theme present in this verse is the concept of stewardship. The verse implies that humans are mere stewards of the world and the resources within it. It reminds the Israelites that everything they have ultimately belongs to God and that they are accountable to Him for how they use it. This idea is also echoed throughout the Bible, particularly in the teachings of Jesus, who often spoke about using resources wisely and being good stewards of what has been entrusted to us.

The context of this verse is important for a deeper understanding. In the preceding verses of Psalm 50, God is depicted as a judge who is summoning the earth and its inhabitants to stand before Him. He rebukes the people of Israel for their offerings and sacrifices, which have become ritualistic and devoid of true reverence and obedience. In verses 10-11, God declares His ownership over all the animals of the forest and the cattle on a thousand hills. He invites the Israelites to remember that He knows every bird in the mountains and the insects in the fields. It is in this context that the verse in question is situated, emphasizing God's complete sovereignty over all creation.

The symbolism in this verse lies in the imagery of God's ownership of the world. The image of God being hungry is metaphorical, used to emphasize His lack of need for anything in creation. It serves to highlight His self-sufficiency and sovereignty. The imagery of the world and its fullness belonging to God serves to remind the Israelites that everything they have ultimately comes from Him and that they are accountable for how they use it.

In conclusion, Psalms 50:12 (KJV) is a powerful declaration of God's sovereignty and His ownership of the world. It serves as a reminder to the Israelites and to all readers of the Bible that everything in the world ultimately belongs to God, and that we are mere stewards of His creation. The verse emphasizes the theme of God's self-sufficiency and the symbolism of His ownership over all things. It calls for reverence and obedience to God as the ultimate authority and ruler of the world.