Acts 2:30

But he was a prophet and knew that God had promised him on oath that He would place one of his descendants on his throne.

Note Literally on oath that He would place out of the fruit of his loins on his throne; BYZ and TR on oath out of the fruit of his loins, according to the flesh, to raise up Christ to sit on his throne; Psalms 132:11

BSB · Berean Standard Bible
Therefore being a prophet, and knowing that God had sworn with an oath to him, that of the fruit of his loins, according to the flesh, he would raise up Christ to sit on his throne;
KJV · King James Version
Therefore, being a prophet, and knowing that God had sworn with an oath to him that of the fruit of his body, according to the flesh, he would raise up the Christ to sit on his throne,

Note “Christ” means “Anointed One”.

WEB · World English Bible
Being therefore a prophet, and knowing that God had sworn with an oath to him, that of the fruit of his loins he would set one upon his throne;
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

being
Acts 1:16; 2 Samuel 23:2; Matthew 27:35; Mark 12:36; Luke 24:44; Hebrews 3:7; Hebrews 4:7; 2 Peter 1:21
knowing
2 Samuel 7:11–16; 1 Chronicles 17:11–15; Psalm 89:3, 4, 19–37; Psalm 110:1–5; Psalm 132:11–18; Romans 1:3; 2 Timothy 2:8; Hebrews 7:1, 2, 21
with
Hebrews 6:17
he
Psalm 2:6–12; Psalm 72:1–19; Isaiah 7:14; Isaiah 9:6, 7; Jeremiah 23:5, 6; Jeremiah 33:14, 15; Amos 9:11, 12; Micah 5:2; Luke 1:31–33, 69, 70; Luke 2:10, 11; John 18:36, 37; Romans 15:12; Revelation 17:14; Revelation 19:16