Is it enough, then, that we do not kill our neighbour in any such way?

No. When God condemns envy, hatred, and anger, He commands us to love our neighbour as ourselves, to show patience, peace, gentleness, mercy, and friendliness toward him, to protect him from harm as much as we can, and to do good even to our enemies.

Proofs

• No. When God condemns envy, hatred, and anger, He commands us to love our neighbour as ourselves, (Matthew 7:12; Matthew 22:39; Romans 12:10)
• to show patience, peace, gentleness, mercy, and friendliness toward him, (Matthew 5:5; Luke 6:36; Romans 12:10; Romans 12:18; Galatians 6:1–2; Ephesians 4:2; Colossians 3:12; 1 Peter 3:8)
• to protect him from harm as much as we can, and to do good even to our enemies. (Exodus 23:4–5; Matthew 5:44–45; Romans 12:20)