"The Martyrdom of Polycarp" is an ancient Christian text that describes the martyrdom of Polycarp, a prominent early Christian bishop and disciple of the Apostle John. The account provides valuable insights into the early Christian community's devotion to their faith and their willingness to face persecution and death for their beliefs.

Zacharias Ursinus' "Commentary on The Heidelberg Catechism" is a comprehensive and influential exposition of the Heidelberg Catechism, one of the foundational documents of Reformed Christianity. Ursinus, a prominent Reformed theologian and one of the authors of the Catechism, wrote this commentary to provide a detailed explanation and defense of the Catechism's teachings.

Zacharias Ursinus' "Commentary on The Heidelberg Catechism" is a comprehensive and influential exposition of the Heidelberg Catechism, one of the foundational documents of Reformed Christianity. Ursinus, a prominent Reformed theologian and one of the authors of the Catechism, wrote this commentary to provide a detailed explanation and defense of the Catechism's teachings.

Zacharias Ursinus' "Commentary on The Heidelberg Catechism" is a comprehensive and influential exposition of the Heidelberg Catechism, one of the foundational documents of Reformed Christianity. Ursinus, a prominent Reformed theologian and one of the authors of the Catechism, wrote this commentary to provide a detailed explanation and defense of the Catechism's teachings.

"The Heidelberg Catechism" is a historic and widely respected Reformed Christian confessional document. Written in 1563 by Zacharias Ursinus and Caspar Olevianus under the guidance of Elector Frederick III of the Palatinate, it was intended to provide a clear and comprehensive summary of the Christian faith for instruction and spiritual edification.

"The Second Helvetic Confession" is a significant Reformed Christian statement of faith written by Heinrich Bullinger, a prominent Swiss theologian and successor to Ulrich Zwingli. This confession was adopted by various Reformed churches and became one of the foundational documents of Reformed Protestantism.

"The Second Apology" is an important early Christian apologetic work written by Justin Martyr, a second-century Christian philosopher and theologian. Like his "First Apology," this text is addressed to the Roman Senate and Emperor Antoninus Pius, aiming to defend and explain the beliefs and practices of Christianity to the Roman authorities and the broader Greco-Roman society.