"The Free Gift" by God means,,, no human(because all human are Adam's sin and death) but only Jesus is from God as free gift for mankind.
Many confuse in the term of "Free." Some even to think that it gives license to neglect or sining.
But bible means that not from or nor by any Adam's descendants's good actions can not put human back to right place before sining stage,
but only from God as gift, the Jesus who was second Adam.
If one confesses by lips that Jesus is my master of my life(because of the redemption by Jesus) and
in one's heart believes that God raised Jesus our master of life from the death,(because his master lives the one will live also)
then he is saved from God's wrath.
Can any one who are saved, not love his neighbor, or go back to previous life style doing wrong?
If the one who are saved by his master, Jesus,,I'm sure that the one who are saved will dedicate his life for the one who saved him or her.
So doing good things to neighbors are the basic deeds for all christians.