Do you understand what you are saying when you say a person can lose their salvation?

No, a Christian cannot lose salvation. Nothing can separate a Christian from God’s love (Romans 8:38-39). Nothing can remove a Christian from God’s hand (John 10:28-29). God is both willing and able to guarantee and maintain the salvation He has given us. Jude 24-25, “To Him who is able to keep you from falling and to present you before his glorious presence without fault and with great joy - to the only God our Savior be glory, majesty, power and authority, through Jesus Christ our Lord, before all ages, now and forevermore! Amen.”