What was King David's most important achievement?

A.) He secured the borders of Israel.

B.) He planned the Temple in Jerusalem.

C.) He made Jerusalem the capital of Israel.

D.) He was a strong and wise king.

King David's most important achievement was that he made Jerusalem the capital of Israel. Option C is correct.

David is described in the Hebrew Bible as the second king of the United Kingdom of Israel and Judah after Saul and Ishbaal.

King David, the "sweet singer of Israel," reigned over Israel for nearly 40 years, from 1000 B. C. to 962 B. C. King David suceed in unifying Israel. Furthermore, he established the walled city of Jerusalem as the capital of his kingdom.

I think it's c because I read about it and learned about it so that's why I think it's c. Although David was anointed king in Hebron (2 Samuels 5:3), he established the walled city of Jerusalem as the capital of his kingdom. It was one of David's greatest accomplishments as kingand one of the first actions he took as ruler of Israel. This is why I think it is c