Shmuel Alef 20:3-5

Orthodox Jewish Bible

³ And Dovid took an oath, moreover, and said, Avicha certainly knoweth that I have found chen in thine eyes; and he saith, Let not Yonatan know this, lest he be grieved; but truly as Hashem liveth, and as thy nefesh liveth, there is hardly a peysah (step) between me and mavet.

⁴ Then said Yonatan unto Dovid, Whatsoever thy nefesh saith, I will even do it for thee.

⁵ And Dovid said unto Yonatan, Hinei, makhar (tomorrow) is Rosh Chodesh, and I should not fail to sit with HaMelech for tish; but let me go, that I may hide myself in the sadeh unto the erev hashlishit.