Proverbs 10:1 repeats the exact same heading 'The proverbs of Solomon', beginning the next collection of Solomon's sayings.

Proverbs 25:1 attributes more proverbs to Solomon but notes they were compiled by Hezekiah's men—a later extension of the same tradition.

1 Kings 4:31 confirms Solomon's surpassing wisdom, validating the book's claim as his proverbs.

1 Kings 4:32 explicitly states Solomon spoke 3,000 proverbs, directly linking to this collection.

Ecclesiastes 12:9 describes the Preacher (Solomon) as wise and a compiler of proverbs, reinforcing the same tradition.

2 Samuel 12:24 records Solomon's birth to David and Bathsheba, identifying the 'son of David' in the title.

1 Kings 2:12 shows Solomon's kingdom established, confirming his identity as 'king of Israel' in the title.

1 Chronicles 22:9 prophesies Solomon as a man of rest and peace, a background to his wisdom and proverbs.

1 Chronicles 28:5 declares God chose Solomon to reign, underscoring his divine appointment as 'king of Israel'.