Meekness is not weakness. Sometimes we confuse the two. But the difference between a meek person and a weak person is this: a weak person can’t do anything. A meek person, on the other hand, can do something but chooses not to.

Christianity.com

If meekness isn’t weakness and God chooses to bless the one who walks in this virtue, then I want to know the truth of what meekness really means.

Christianity.com describes meekness as a virtue that draws courage, strength, conviction, and good disposition from God, not from self-centered human resources. I found their post really insightful about Jesus’ third beatitude from His Sermon on the Mount. You may read it here: Who are the Meek?