1. Son of Simeon
And the sons of Simeon; Jemuel, and Jamin, and Ohad, and Jachin, and Zohar, and Shaul the son of a Canaanitish woman. (Genesis 46:10)
And the sons of Simeon; Jemuel, and Jamin, and Ohad, and Jachin, and Zohar, and Shaul the son of a Canaanitish woman: these are the families of Simeon. (Exodus 6:15)
The sons of Simeon after their families: of Nemuel, the family of the Nemuelites: of Jamin, the family of the Jaminites: of Jachin, the family of the Jachinites: (Numbers 26:12)
Called JARIB
The sons of Simeon were, Nemuel, and Jamin, Jarib, Zerah, and Shaul: (1 Chronicles 4:24)
2. Name of a pillar
And he set up the pillars in the porch of the temple: and he set up the right pillar, and called the name thereof Jachin: and he set up the left pillar, and called the name thereof Boaz. (1 Kings 7:21)
And he reared up the pillars before the temple, one on the right hand, and the other on the left; and called the name of that on the right hand Jachin, and the name of that on the left Boaz. (2 Chronicles 3:17)
See BOAZ
3. A priest, who returned from the exile to Jerusalem
And of the priests; Jedaiah, and Jehoiarib, and Jachin, (1 Chronicles 9:10)
Of the priests: Jedaiah the son of Joiarib, Jachin. (Nehemiah 11:10)
4. A priest, head of one of the shifts of priests
The one and twentieth to Jachin, the two and twentieth to Gamul, (1 Chronicles 24:17)