2 Kings 4:23
“And he said, Wherefore wilt thou go to him to day? it is neither new moon, nor sabbath. And she said, It shall be well.”
And she went up, and laid him on the bed of the man of God, and shut the door upon him, and went out.
And she called unto her husband, and said, Send me, I pray thee, one of the young men, and one of the asses, that I may run to the man of God, and come again.
And he said, Wherefore wilt thou go to him to day? it is neither new moon, nor sabbath. And she said, It shall be well.
Then she saddled an ass, and said to her servant, Drive, and go forward; slack not thy riding for me, except I bid thee.
So she went and came unto the man of God to mount Carmel. And it came to pass, when the man of God saw her afar off, that he said to Gehazi his servant, Behold, yonder is that Shunammite:
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“Let no man therefore judge you in meat, or in drink, or in respect of an holyday, or of the new moon, or of the sabbath days:”
“And in the beginnings of your months ye shall offer a burnt offering unto the Lord; two young bullocks, and one ram, seven lambs of the first year without spot;”
“Also in the day of your gladness, and in your solemn days, and in the beginnings of your months, ye shall blow with the trumpets over your burnt offerings, and over the sacrifices of your peace offerings; that they may be to you for a memorial before your God: I am the Lord your God.”
“And in the beginnings of your months ye shall offer a burnt offering unto the Lord; two young bullocks, and one ram, seven lambs of the first year without spot;”
“Bring no more vain oblations; incense is an abomination unto me; the new moons and sabbaths, the calling of assemblies, I cannot away with; it is iniquity, even the solemn meeting.”