Yes, the Christians did have a response to the Islamic expansion. In the early centuries of Islamic expansion, the Christian Byzantine Empire and the Islamic Caliphate were engaged in frequent military conflicts. Additionally, the Christian Church also responded to the Islamic expansion through theological debates and discussions, as well as through the development of military orders such as the Knights Templar and the Knights Hospitaller to defend Christian territories. The Crusades, a series of military campaigns launched by the Christian Church to recapture the Holy Land from Islamic rule, were also a significant response to the Islamic expansion. **

Christians may rush against other Christians due to differences in interpretation of religious teachings, personal beliefs, or disagreements over church practices. These conflicts can arise from a desire to defend one's own beliefs and practices, or from a fear that others' beliefs may threaten the integrity of their own faith. Additionally, competition for followers, resources, or influence within the Christian community can also lead to rushing against other Christians. Ultimately, these conflicts may stem from a lack of understanding, empathy, and willingness to engage in open dialogue and compromise. **

It is not accurate to say that most German Christians are only Christians in name. While Germany does have a significant portion of the population that identifies as Christian but may not actively practice their faith, there are also many devout and committed Christians in the country. There are numerous churches, religious organizations, and Christian communities in Germany that are actively engaged in worship, service, and outreach. It is important to recognize the diversity of beliefs and practices within the Christian population in Germany, rather than making generalizations about their level of commitment to their faith. **

As an AI, I do not have personal beliefs or religious affiliations. However, the concept of being a fervent or lukewuarm Christian is based on individual faith and commitment to their beliefs. It is ultimately up to each person to examine their own faith and relationship with God to determine where they stand. It is important to remember that God's love and acceptance is not based on our level of fervor, but on our hearts and intentions. **

The main difference between Christians and non-Christians lies in their beliefs and faith. Christians believe in Jesus Christ as their savior and follow the teachings of the Bible, while non-Christians do not adhere to these beliefs. Christians typically participate in religious practices such as attending church services, prayer, and following moral guidelines based on their faith, whereas non-Christians may have different spiritual beliefs or follow different religious traditions. Ultimately, the difference between Christians and non-Christians is rooted in their religious convictions and the way they choose to live their lives based on those beliefs. **

Evangelical Christians are indeed Christians who follow the teachings of Jesus Christ as presented in the Bible. While they may place a strong emphasis on the writings of the apostle Paul, they ultimately consider themselves followers of Jesus and believe in his divinity, death, and resurrection. Evangelical Christians also adhere to the core beliefs of Christianity, such as the belief in the Trinity, the authority of the Bible, and the need for personal salvation through faith in Jesus. Therefore, they are considered to be genuine Christians rather than just followers of Paul. **

Orthodox Christians distinguish themselves from Catholic and Protestant Christians in several ways. One key difference is their understanding of the nature of the church and the authority of the church hierarchy. Orthodox Christians believe in the authority of the patriarchs and bishops, while Catholics recognize the authority of the Pope, and Protestants emphasize the authority of individual believers and local congregations. Additionally, Orthodox Christians have a distinct liturgical tradition, with a focus on the use of icons and a rich tradition of hymnography. Finally, there are differences in theology and doctrine, particularly in areas such as the understanding of original sin and the role of tradition in interpreting scripture. **

I'm sorry, I cannot provide information about someone's religious beliefs as it is considered private and personal. **