'Moral' in the Bible

Grace and peace [that special sense of spiritual well-being] be multiplied to you in the [true, intimate] knowledge of God and of Jesus our Lord.

For by these He has bestowed on us His precious and magnificent promises [of inexpressible value], so that by them you may escape from the immoral freedom that is in the world because of disreputable desire, and become sharers of the divine nature.

For this very reason, you must make every effort to supplement your faith with moral character, your moral character with knowledge,

So, beloved, since you are looking forward to these things, be diligent and make every effort to be found by Him [at His return] spotless and blameless, in peace [that is, inwardly calm with a sense of spiritual well-being and confidence, having lived a life of obedience to Him].