Romans 11:22 >
"Therefore consider the goodness and severity of God: on those who fell, severity; but toward you, goodness, if you continue in His goodness. Otherwise you also will be cut off." (Romans 11:22)
"What does it mean to continue in His goodness?"
Keep actively seeking God to correct our character to be more and more like Christ > Hebrews 12:4-14, James 5:16.
Submit to how our Father rules each of us with His own peace in our hearts > Colossians 3:15.
"rather let it be the hidden person of the heart, with the incorruptible beauty of a gentle and quiet spirit, which is very precious in the sight of God." (1 Peter 3:4)
And there is plenty more in the scriptures.