In a godly relationship, it is important to prioritize purity and honor God with your actions and choices. Here are some principles to help you restrain from engaging in sexual activity:

1. Honor God's design for sexuality: Recognize that God has designed sex to be enjoyed within the context of marriage (Hebrews 13:4, 1 Corinthians 6:18-20). Acknowledge that abstaining from sexual activity before marriage is a way of honoring and obeying God.

2. Set boundaries: Clearly communicate with your partner about your commitment to purity and establish physical boundaries. Discuss what actions or situations may lead to temptation and agree to avoid them. Commit to practicing self-control and respecting each other's boundaries.

3. Build a strong spiritual foundation: Invest time in personal and shared prayer, reading the Bible, and attending church together. Strengthening your relationship with God will help you have a broader perspective on intimacy and make it easier to resist temptation.

4. Surround yourselves with accountability: Seek out a small group or mentor who can provide guidance and accountability in your relationship. Regularly check in with them, share your struggles and successes, and ask for prayer and support.

5. Stay in community: Spend time with other couples who share your commitment to purity. This can provide encouragement, accountability, and healthy examples to follow.

6. Focus on non-sexual forms of intimacy: Build emotional, intellectual, and spiritual connection with your partner. Engage in activities that deepen your bond, such as conversation, quality time, serving others together, and engaging in shared hobbies and interests.

7. Seek guidance from your pastor or spiritual leaders: If you're struggling with temptation or finding it difficult to remain pure in your relationship, don't hesitate to seek wise counsel from spiritual mentors who can provide guidance and help you navigate these challenges.

Remember, restraining from sex in a godly relationship requires a commitment to purity and a desire to honor God above all else. It may not always be easy, but seeking after God's will and leaning on His strength will help you stay on the right path.