V.1-3 At the Red Sea, they had been delivered from death through water, now they were being tested by having no water at all! It was water which had delivered them from the enemy’s power, here they had to learn the power of water (in God’s hands) as applied to them personally.
V.6 God’s mercy and care again.
V.7 Just like us! After all the Lord had just done for them, here they were doubting the Lord’s promises.
V.15 “Jehovah-nissi” means “the Lord my banner.”