Matthew 9:17
Neither do men pour new wine into old wineskins. If they do, the skins will burst, the wine will spill, and the wineskins will be ruined. Instead, they pour new wine into new wineskins, and both are preserved.”
What it says
New wine bursts old skins, and both the wine and the skins are lost unless the container is new.
What it is doing
The second image completes the warning by matching new life to new vessels.
In context
16No one sews a patch of unshrunk cloth on an old garment. For the patch will pull away from the garment, and a worse tear will result. 17Neither do men pour new wine into old wineskins. If they do, the skins will burst, the wine will spill, and the wineskins will be ruined. Instead, they pour new wine into new wineskins, and both are preserved.”