Osee 2:20

20 and I will betroth thee to myself in faithfulness: and thou shalt know the Lord.

Osee 2:20 In-Context

18 And I will make for them in that day a covenant with the wild beasts of the field, and with the birds of the sky, and with the reptiles of the earth: and I will break the bow and the sword and the battle from off the earth, and will cause thee to dwell safely.
19 And I will betroth thee to myself for ever; yea, I will betroth thee to myself in righteousness, and in judgment, and in mercy, and in tender compassions;
20 and I will betroth thee to myself in faithfulness: and thou shalt know the Lord.
21 And it shall come to pass in that day, saith the Lord, I will hearken to the heaven, and it shall hearken to the earth;
22 and the earth shall hearken to the corn, and the wine, and the oil; and they shall hearken to Jezrael.

The Brenton translation of the Septuagint is in the public domain.