In the biblical narrative, God's instructions for the unclean and travelers are primarily found in the Old Testament, particularly within the Pentateuch. These instructions were given to the Israelites to maintain holiness, purity, and order within the community, reflecting God's nature and His covenant with His people.

Instructions for the Unclean:

The concept of cleanliness and uncleanliness is a significant theme in the Mosaic Law. Being "unclean" often referred to a state of ritual impurity, which could result from various circumstances, including certain diseases, bodily discharges, contact with dead bodies, and consumption of unclean animals. The Book of Leviticus provides detailed instructions on how to handle these situations.

1. Leviticus 11-15: These chapters outline the laws regarding clean and unclean animals, childbirth, skin diseases, and bodily discharges. For instance, Leviticus 11:46-47 states, "This is the law regarding animals, birds, all living creatures that move in the water, and all creatures that crawl along the ground. You must distinguish between the clean and the unclean, between the living creatures that may be eaten and those that may not be eaten."

2. Purification Rituals: Those who became unclean were required to undergo specific purification rituals. For example, a person with a skin disease had to present themselves to a priest for examination and, if declared clean, offer sacrifices as described in Leviticus 14.

3. Purpose of the Laws: These laws served to set the Israelites apart from other nations, emphasizing holiness and obedience to God. Leviticus 20:26 declares, "You are to be holy to Me because I, the LORD, am holy, and I have set you apart from the nations to be My own."

Instructions for Travelers:

Travelers, particularly those on a journey to observe religious festivals or fulfill vows, were also given specific instructions to ensure they remained in a state of ritual purity.

1. Passover Observance: Numbers 9:10-11 provides guidance for those who were unclean or on a journey during the Passover. It states, "Tell the Israelites: When any one of you or your descendants is unclean because of a dead body or is away on a journey, he may still observe the Passover to the LORD. Such people are to observe it at twilight on the fourteenth day of the second month."

2. Provision for the Journey: Deuteronomy 14:24-26 addresses those traveling long distances to the place of worship. If the journey was too long to carry their tithes, they were permitted to convert them into money, which could be used to purchase offerings upon arrival.

3. Protection and Guidance: God's care for travelers is evident in His promise of protection and guidance. Psalm 121:8 assures, "The LORD will watch over your coming and going, both now and forevermore."

These instructions underscore the importance of maintaining a relationship with God through obedience and reverence, even when faced with the challenges of ritual impurity or the demands of travel. They reflect a divine order that seeks to integrate the sacred into every aspect of life, ensuring that God's people remain distinct and devoted to Him.