The author Eckhard J. Schnabel has written numerous scholarly commentaries in international series.

The Historical-Theological Commentary Series (HTA) of the New Testament is a project by exegetes from the evangelical sphere. Its aim is to explain and clarify the statements of the New Testament texts with scholarly rigor, considering their historical context, literary characteristics, and theological concerns. In doing so, both traditional and newer exegetical methods and research findings are taken into account.

What makes this commentary series special is that, beyond striving for precise historical explanation, it also builds bridges to the contemporary church. The interpretation keeps in mind the practices of preaching and pastoral care.

The commentary series follows a consistent four-part structure:
1. A precise and literal translation.
2. Comments on the context, structure, literary form and genre, as well as the theological background.
3. Verse-by-verse exegesis.
4. A summary that traces the history of interpretation and provides a bridge to the present and practical application.