How Do You Know If Someone Is a True Christian?

How do you know if someone is a true Christian? In the old covenant, adherence to the 613 commands of the Torah marked the people of God. In the new covenant in Christ, self-giving love (i.e., holiness; Christ-like love) empowered by the Holy Spirit is the mark of the believer.It is historically and theologically significant that the Father and the Son fulfilled the promised of pouring out the Holy Spirit on Christ-followers on the day of Pentecost. Pentecost is the Old Testament celebration of the giving of the Law at Sinai (Ex. 19–20). This means that the Holy Spirit and the Law have similar functions in that they both review: (1) sin, (2) the character of God, and (3) the people of God to the world. The Holy Spirit, like the Law, is the MARK of the people of God. In the old covenant, the mark was outward (circumcision, dress, dietary laws, sabbath observance, etc.). In the new covenant, the mark is inward (love). More here: https://wellspringms.church/pentecost-2024/