'Legally' in the Bible

Gather the people, sanctify the congregation,Assemble the elders,Gather the children and the nursing infants.Let the bridegroom come out of his roomAnd the bride out of her bridal chamber. [No one is excused from the assembly.]

So then, if Demetrius and the craftsmen who are with him have a complaint against anyone, the courts are in session and proconsuls are available; let them bring charges against one another there.

He has qualified us [making us sufficient] as ministers of a new covenant [of salvation through Christ], not of the letter [of a written code] but of the Spirit; for the letter [of the Law] kills [by revealing sin and demanding obedience], but the Spirit gives life.