Coming back to it with fresh eyes as a 'baby Christian' some 7 years ago, it soon became one of my favourite passages in the bible.
The biggy here - and something I want to share almost as much as a warning as anything - is that God WILL make you lie down. v2: "he makes me lie down in green pastures."
In my first term at uni, I did a lot of things - one of them wasn't becoming a Christian, that happened in my second term. Consequently, I ended up with glandular fever, and spent 5 weeks of my first term (which was only 10 weeks long) in bed. There's a lot of ways in which God can MAKE us lie down - exhaustion is a good one.
More important is what happens in that place - he restores our soul.
So how much greater will the blessing be if we choose to come to that place - a thought that leads me nicely on to the title & the first line of a well known song.
Just as our strength can be sapped by the things we do, God can take it away (1 Samuel 2:31) or restore it - so this exam season, be sure to take the time to look to God, to rest in Him, and to intentionally make space for Him.
He will reward you with peace, with renewed strength, and you will find that by taking time off (going on facebook doesn't count), you will end up getting more done - if you don't allow God into your revision & exams until the last minute, don't be surprised if you can't hear Him when it's too late.
Ps. 121:1-2 says "I lift up my eyes to the hills - where does my help come from? My help comes from the Lord, the Maker of heaven and earth."
Lift your eyes to the hills in the coming weeks, and be still for the presence of the Lord.