Numbers 5:20

20 But if you have gone astray, being under your husband, and if you are defiled, and some man has lain with you besides your husband:'

Numbers 5:20 Meaning and Commentary

Numbers 5:20

But if thou hast gone aside to another instead of thy
husband
Gone aside from the paths of modesty and chastity, and betook herself to another man's bed instead of her husband's:

and if thou be defiled,
by committing adultery:

and some man hath lain with thee beside thy husband;
these phrases are all synonymous, and a heap of words are made use of to express the sin, and that there might be no evasion of it, and that it might be clear what was intended, this being said on oath.

Numbers 5:20 In-Context

18 The Kohen shall set the woman before the LORD, and let the hair of the woman's head go loose, and put the meal offering of memorial in her hands, which is the meal offering of jealousy. The Kohen shall have in his hand the water of bitterness that brings a curse.
19 The Kohen shall cause her to swear, and shall tell the woman, 'If no man has lain with you, and if you haven't gone aside to uncleanness, being under your husband, be free from this water of bitterness that brings a curse.
20 But if you have gone astray, being under your husband, and if you are defiled, and some man has lain with you besides your husband:'
21 then the Kohen shall cause the woman to swear with the oath of cursing, and the Kohen shall tell the woman, 'The LORD make you a curse and an oath among your people, when the LORD allows your thigh to fall away, and your body to swell;
22 and this water that brings a curse will go into your bowels, and make your body swell, and your thigh fall away.' The woman shall say, 'Amein, Amein.'
The Hebrew Names Version is in the public domain.