Just to kick it off:
Consider in Isaiah 55: Ho, every one that thirsteth, come ye to the waters, and he that hath no money; come ye, buy, and eat; yea, come, buy wine and milk without money and without price.
One, I repeat, of my favorites. Juxtapose that with the NT account of Jesus healing - individually - pretty much anybody who asked or who was asked on behalf.
And it ties in with the time of my shift, when I was in effect given freedom from a 30 year crippling hangup as a free, no strings attzached, sample of salvation.
The particularity of this is in large part what led me to see the Christian formula as he best explanation for that year.
Myth and folklore, which I know not quite as well as languages, but they have been a serious study, are remarkably low on unconditional free gifts. Instead what you see is a lot of wquid pro quo.
Jesus heals people who do not sign on, and does not go after them to take back the healing.
Without money and without price. I think I have only encountered this in the tradition where the benefactor is specifically tied to the recipient - the ghost of his mothger, for example. Making the Christ Account perhaps unique.