For a scuba diver, it's critical to have certain equipment. For instance, an oxygen tank, a face mask and a wetsuit. The roles of each piece contributes to the big picture of having the most beneficial time on your dive. A person can not go on a scuba dive with only some of these things, or none at all, or even similar looking equipment. This person needs this equipment and it needs to be working properly. The oxygen tank needs to have oxygen in it, not helium or any other gas, the facemask needs to be made for diving and can't be sunglasses, although they both protect the eyes. The wetsuit keeps the diver warm. A tuxedo would not serve much purpose in the water. Also, because all this is critical, a person can't go on a scuba dive with just an oxygen tank, or just the mask or just the wetsuit or 2 out of the 3. All the pieces fit together and contribute to provide the most beneficial experience of scuba diving.
Let's think of this equipment as some of the vital elements of worship. Let's think of the O2 tank as the spirit, the facemask as truth and the wetsuit as holiness. No illustration will ever be enough to fully understand the whole of worship, but, Lordwilling, this will facilitate a start to understanding the exclusivity of worship, which is exclusive to God and God alone and what He has said in His Word. On the other hand, worship is excluding of everything that is worldly. Worldly likenesses such as an imitation of worldly concerts, worldly atmospheres and worldly emotionalism. Back to our diving illustration. Some of the vital elements found in Biblical worship are the spirit, the truth and holiness of God. Biblical worship is not worship that is acceptable to God unless it is accompanied by spirit, truth and holiness. Some think that if there is truth in the lyrics, then it is acceptable to God. Not unless that truth is clothed in the beauty of holiness will God regard it. The other side is also true. Worship will not be acceptable if there is holiness, but no truth. In the Greek, the terms "spirit" and "truth" are interchangeable and there can not be one without the other. What is the truth that needs to be in worship? God's truth. The truth of the gospel, the truth of who He is and His character and as much truth about God and His Word that His children can obtain. Without God's truth, our worship offering to God will not matter and will not draw us closer to Him.
Worship to God also needs to be holy. Holy unto God and completely apart from worldly likenesses. Without holiness, the worship we offer may as well be like going scuba diving without a wetsuit, not acceptable and also detrimental to one's own walk with the Lord. The Lord seeks worshippers......true worshippers.
There's another dynamic in this illustration that is helpful. Divers need to know what depths their oxygen tank can handle. If they are only going 30 feet deep, a tank thickness of .5 inches may be ok, but if they are going 60 feet deep, their tank may need to 1.5 inches thick. For every 10 meters of depth, there is an additional 14 pounds of pressure on your body and your equipment. Pressure all around and a diver needs to be sure that his/her equipment can handle it and not cave under that pressure. It would be deathly if the oxygen tank were to collapse under pressure and the diver wasn't prepared for it. The more a believer studies God's Word results in a more solid understanding of His truth. Obviously, we will never fully understand the whole of the Bible until Glory, but, like Paul wrote in Philippians 3:14, "I press toward the mark for the prize of the high calling of God in Christ Jesus."