The Abrahamic God relates to humanity through a series of Biblical covenants

The Abrahamic God relates to humanity through a series of Biblical covenants
Subjects
The Bible	Christianity
History	Islam
Theology
Linking arguments
It is morally acceptable to marry more than one person The laws of the Old Testament have been replaced by the New Testament and are no longer binding

Note: This position is called dispensationalism.

Supporting arguments

This point relies on Christian doctrine. God creates and enforces covenants, or agreements, between him and humanity. In each stage, the ultimate promise of salvation is offered through faith alone, and in each stage, mankind has failed to live up to God's expectations.  Related argument: Christian faith alone is sufficient to achieve salvation.

This point relies on Islamic doctrine. Allah sets down rules for each age, which apply only to each respective period.

Opposing arguments

This point relies on Christian doctrine. While there may be some truth to the most basic of ideas about Biblical covenants, most of the claims by dispensationalists are groundless.