Biblical Age of the Earth
Scripture presents enough chronological information to estimate the number of years between Adam, whom God created on Day 6 of the creation week, and Christ, who was the last Adam.
From Adam to the Flood was about 1,656 years, and Abraham lived a few hundred years after the Flood. Other time markers in Scripture include the number of years Jacob’s descendants spent in Egypt, the total number of years Israel was ruled by judges, then kings, and how long Israel was held captive by Assyrians and Babylonians until God re-established them under Ezra and Nehemiah.
Adding these and other pieces, most of which even find confirmation from secular archaeological sources, brackets an age for the world of around 6,000 years.