"Save me, O God; for the waters are come in unto my soul." (Psalm 69:1)
David prays to God for relief from an emotional deluge. He continues: "I sink in deep mire, where there is no standing: I am come into deep waters, where the floods overflow me." (verse 2) Who knows all the molecules that conspired--one on top of another--to bring him to this point of desperation. I think God allows us to feel inundated for any number of reasons. Some that you can surmise and work out now. Like how He's allowing the trial to make you stronger, etc. That's a real broad and simple platitude when expressed with the wrong motive of heart, I should add. No one likes a circular statement of encouragement. As the truths inherent in your time of testing may be deeper than you can get at as yet, perhaps some good old-fashioned suffering might bring them to the surface? Whoops. That's what I'm talking about. Should you be in proximity to a person treading deepwater, do your best to lift them up, not by words, but by deeds. Buy them coffee. Receive a word from the Lord for them that inspires them to keep moving. Love them in whatever way the Holy Spirit intimates to you. But make sure it's love and not something--anything--else. Because anything else is like giving water to a drowning individual.
"Thou coveredst it with the deep as with a garment: the waters stood above the mountains. At Thy rebuke they fled; at the voice of thy thunder they hasted away. They go up by the mountains; they go down by the valleys unto the place which Thou hast founded for them. Thou hast set a bound that they may not pass over; that they turn not again to cover the earth." (Psalm 104:6-8)
As an aside, I wonder about the opening of Genesis, I really do. Why would it say "And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters." (Genesis 1:3)? God's ultimately in charge, yes. I believe He'll let someone keep living who truly wants to work something out with Him. And I'm talking about the really deep ones. The ones who, all they've known is misery, having been born under a dark cloud and lived under that sky their whole life, who would be happier in Heaven. Should they choose to keep pressing on and bailing, God will reward their faith. There are a thousand variables, to be sure, but I think that unless someone really wants to go home--the suffering's that bad--God will help them out of the flood. He'll recall the waters and see to it that they never break open in the same way again. Don't think me heretical but Jesus is just one person. This is why He's called you, called me. While He can be everywhere by the Holy Spirit, He gives us the privilege of being His proxy to those He's on the way to visit in person ("and about the fourth watch of the night He cometh unto them, walking upon the sea..." Mark 6:48). There's a lot to this but, as I mentioned in the first section, this is another reason why we go through suffering. Granted, the easy answer of "to help others in the same position at some point in the future", may not do much to alleviate when it's spoken. The truth of the statement, however, will find root beneath all that water and once it abates, will sprout and produce fruit after its kind.
"And I saw a new Heaven and a new earth: for the first heaven and the first earth were passed away; and there was no more sea." (Revelation 21:1, emphasis mine)
Because it's not needed anymore. Simple enough right? Here's the thing about water though. It's all over the place, literally. It essential for life. But it can also be the deadliest substance known to man. Our bodies are two-thirds water, much like the earth. It'll put out a fire, but you really don't worry about that if you're drowning. Narrowing it down to specifics though, before the sea is done away with completely in your life, thank God for it. Ask Him to teach you why He allowed the "waters to come in unto [your] soul" in the first place. Because the more you grow with God, the more that point-in-time reason will begin to surface. Like Ararat after Noah's ordeal. There was a reason. There's always a reason. I've never been one to wait for Heaven and while away my days without possessing that kernel of understanding that would allow me to recolonize my world after the suffering had passed.
"And I will establish my covenant with you; neither shall all flesh be cut off any more by the waters of a flood; neither shall there any more be a flood to destroy the earth." (Genesis 9:11)