moral and spiritual rectitude in every area and relation
could this mean you know what to say and you know whos saved and whos not saved...
You can't define moral and spiritual rectitude in a sentence or two but we sure should know the difference between the two and how that relate to God and our walk with Him.
We have the Holy Spirit that dwells within that will witness the Holy Spirit dwelling within others. If the Holy Spirit is grieved or quenched because of sin or deception, that witness becomes inactive and their is no fruit being experienced in the heart and mind of the believer. We also know we have passed from death unto life because we actively love our brother and practice that love in practical ways to edify them and build them up in Christ. Whether we know and can be sure if a person is saved or not, we are to always reveal Christ and be filled with the Spirit of God's love and grace toward that person.