WHOSE LIFE MATTERS? and who says so?

29 Let no unwholesome word proceed out of your mouth, but only that which is good for building up, that it may give grace to the listeners. 30And do not grieve the Holy Spirit of God, in whom you are sealed for the day of redemption. 31 Let all bitterness, wrath, anger, outbursts, and blasphemies, with all malice, be taken away from you. 32And be kind one to another, tenderhearted, forgiving one another, just as God in Christ also forgave you. Ephesians 4 Eph 4