Some scriptures to consider -
Be completely humble and gentle; be patient,
bearing with one another in love.
Ephesians 4:2
A gentle answer turns away wrath,
but a harsh word stirs up anger.
Proverbs 15:1
Take my yoke upon you and learn from me, for I am
gentle and humble in heart, and you will find rest for your souls.
Matthew 11:29
Let your gentleness be evident to all. The Lord is
near.
Philippians 4:5
But in your hearts revere Christ as Lord. Always be
prepared to give an answer to everyone who asks you to give the reason for the
hope that you have. But do this with gentleness and respect,
I Peter 3:15
Through patience a ruler can be persuaded,
and a gentle tongue can break a bone.
Proverbs 25:15