Another thought on this in regards to the rocks being split at the end of verse 51…
Where have we heard about rocks being split in the Bible? The first instance was with Moses: (all quotes from NWT Bible)
Exodus 17:6 – Look! I will be standing before you there on the rock in Horeb. You must strike the rock, and water will come out of it, and the people will drink it.
Also, look at Nehemiah 9:15 – You gave them bread from heaven when they were hungry, and you brought water out of the crag when they were thirsty, and you told them to enter and take possession of the land that you had sworn to give to them.
And some other scriptures in reference to water…
78:15 – He split rocks in the wilderness,
He let them drink their fill as if from deep waters.
42 As a deer that longs for streams of water,
So I long* for you, O God.
2 I do thirst* for God, for the living God.+
When may I come and appear before God?
Isaiah 11:9 – They will not cause any harm+
Or any ruin in all my holy mountain,+
Because the earth will certainly be filled with the knowledge of Jehovah
As the waters cover the sea.+
And to wrap it all up, from Jesus himself…
John 4:13 – In answer Jesus said to her: “Everyone drinking from this water will get thirsty again. 14 Whoever drinks from the water that I will give him will never get thirsty at all,+ but the water that I will give him will become in him a spring of water bubbling up to impart everlasting life.”
Revelation 7:16 – They will hunger no more nor thirst anymore, neither will the sun beat down on them nor any scorching heat,+ 17 because the Lamb,+ who is in the midst* of the throne, will shepherd them+ and will guide them to springs* of waters of life.
In conclusion, as many of you already know, water tends to be synonymous with knowledge, hence the scripture “let anyone who wishes take life’s water free”. This makes me wonder if that’s what is being said here in verse 51? Is it talking about knowledge flowing forth?
I’ve been praying and asking for insight on many things lately and I thank Jehovah through Jesus for helping me to see things I’ve never noticed before. There are no doubt many “hidden gems” throughout the scriptures and I hope to keep learning and refining.