There are three Ecumenical Creeds which were constructed in the early days of the Church, to communicate Scriptural truth and combat errors. We can use them as tools for evangelism.
Faith, Truth, Inspire, False Teaching, Athanasian, Creed
Trinity (b) Jesus is both Christ and Lord. So we are assured that His sacrifice is acceptable and sufficient, and our salvation is perfect and certain.
Acts 2:22-36, Psalms 110:1, Acts 2:39
Pentecost, Trinity, Son Of God, Athanasian, Divinity Of Christ, Nicene Creed, Peter's Sermon