Repentance: metanoia [met-anâ-oy-ah] Strong’s 3341
a change of mind, as it appears to one who repents, of a purpose he has formed or of something he has done. To turn away from sin, misdeeds and moral short comings and to dedicate one’s self to obedience toward God. To turn from darkness to Light and from the power of satan to the Living God.
Repentance should lead to baptism, for the scripture says
«Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost. For the promise is unto you, and to your children, and to all that are afar off, even as many as the Lord our God shall call.» Acts 2:38-39