Covenant Theology is Not Replacement Theology – Excellent explanation of the differences between covenant theology and dispensationalism. "Second, with respect to salvation, Reformed covenant theology does not juxtapose Israel and the church. For Reformed theology, the church has always been the Israel of God and the Israel of God has always been the church."
Fundamentalism Vs. Reformed Theology – Monergism: "Over time the original reasons for uniting began to fall apart and the differences between the Reformed and fundamentalists began to show. The following are significant differences that we can see today between modern Fundamentalists and those with a Reformed heritage."
What Are the Key Differences Between Eastern Orthodoxy and Biblical Christianity? – TeachingTheWord Ministries – "The operative word describing salvation in Eastern Orthodox theology is theosis – "becoming God". This term describes an alleged progressive transformation of the individual into full likeness to God, in both soul and body, through a cooperative effort involving faith and good works. Like Roman Catholicism, Eastern Orthodoxy denies the distinction between justification (God's unilateral act in declaring a sinner righteous based on faith in the merits of Christ alone – Romans 5) and sanctification (the indwelling Spirit of God conforming the regenerated individual more and more to the image of Christ, a work consummated in the believer's glorification – Romans 8). In fact, Eastern Orthodoxy's false doctrine of theosis additionally conflates regeneration with justification and sanctification."