The Lord often told His prophets to do some crazy things to be a picture or example to His watching people. In Jeremiah 13: 1-11, the Lord has specific instructions about a loincloth:
1Thus says the LORD to me, "Go and buy a linen loincloth and put it around your waist, and do not dip it in water." 2So I bought a loincloth according to the word of the LORD, and put it around my waist. 3And the word of the LORD came to me a second time, 4"Take the loincloth that you have bought, which is around your waist, and arise, go to the Euphrates and hide it there in a cleft of the rock." 5So I went and hid it by the Euphrates, as the LORD commanded me. 6And after many days the LORD said to me, "Arise, go to the Euphrates, and take from there the loincloth that I commanded you to hide there." 7Then I went to the Euphrates, and dug, and I took the loincloth from the place where I had hidden it. And behold, the loincloth was spoiled; it was good for nothing.
8Then the word of the LORD came to me: 9"Thus says the LORD: Even so will I spoil the pride of Judah and the great pride of Jerusalem. 10This evil people, who refuse to hear my words, who stubbornly follow their own heart and have gone after other gods to serve them and worship them, shall be like this loincloth, which is good for nothing. 11For as the loincloth clings to the waist of a man, so I made the whole house of Israel and the whole house of Judah cling to me, declares the LORD, that they might be for me a people, a name, a praise, and a glory, but they would not listen.
The idea that has been pursuing me for the past weeks is the image of the Lord wanting us to be as close to Him as an intimate undergarment. We all desire intimacy, yet we can't "cling" to other people or we will suffocate them. No one can successfully provide perfect, secure relationship at all times. Only the Lord can meet that need. What made verse eleven so important to me, the idea I've been trying to wrap my brain around for these weeks, is that the Lord WANTS us to cling to Him. He DESIRES us to be intimately close to Him, and is humble enough in His glory to use the image of the whole house of Israel (which here, I think, can be a metaphor for us, as well) clinging to Him like a loincloth.
Yet I still doubt His intent toward me, and during my drive I repented of that and prayed that He would help me cling to Him that closely. How amazing that, thousands of years later, the obedience of Jeremiah and the Word of the Lord is still used to touch my hard human heart.