'Later' in the Bible

Then, three years later, I went up to Jerusalem to inquire for Peter, and I spent a fortnight with him.

Later still, after an interval of fourteen years, I again went up to Jerusalem in company with Barnabas, taking Titus also with me.

I mean that the Covenant which God had already formally made is not abrogated by the Law which was given four hundred and thirty years later--so as to annul the promise.

Why then was the Law given? It was imposed later on for the sake of defining sin, until the seed should come to whom God had made the promise; and its details were laid down by a mediator with the help of angels.