In the omnipotent, omniscient, omnipresent, God Almighty.
In the sanctity of the Holy Bible, God's Word.
In the promise of Immanuel, God With Us.
That Jesus Christ of Nazareth was fully man and fully God, or, that Christ and the father are One. (John 10:30)
That He died on the cross to save us from our sins and rose again from the dead in Triumpth.
That Christ is the only way to Heaven (John 14:6)
That salvation is a gift that Christ gives to those who repent of their sins to Christ, believe in Him, and confess their faith publicly. (Romans 10:9-10)
That if we love Christ, we will obey Him. (John 14:15, see also verses 16-24)
In the power and baptism of the Holy Spirit.(Acts 1:5,8)
That in the power of Christ's name, all things are possible. (John 14:13-14)
That Christ will return someday and vindicate His people for eternity, while bringing everlasting judgment on those who reject Him.