This is connected with remission in Mark 1:4, Luke 3:3; 24:47, Acts 5:31. It means an “after mind;” it is the turning of the mind or heart from oneself to God. Repentance unto life is equivalent to conversion (Comp. Acta 11:18 and 15:3). True belief in Christ involves repentance hence, although the former is mentioned over a hundred times in the gospel book of the Bible (John 20:31), repentance is never named.