35 “Be ready for service and have your lamps lit. 36 You are to be like people waiting for their master to return from the wedding banquet so that when he comes and knocks, they can open the door for him at once. 37 Blessed will be those servants the master finds alert when he comes. Truly I tell you, he will get ready, have them recline at the table, then come and serve them.
The passages above show a Pre-Trib rapture, not a Post-Trib.
“Be ready for service and have your lamps lit.” To shine (lamps lit) is to allow the Light in you who is the Holy Spirit to use or make you busy in God’s work.
“You are to be like people waiting for their master” Christians are commanded to be living a life of expectation, of the return or the rapture of the church. The word “master” refers to Jesus Christ.
“so that when he comes and knocks, they can open the door for him at once.” To open the door by hearing Jesus’ knock suggest for the person to be in a state of readiness (alert) by investing one’s time, and resources in doing God’s will.
“Blessed will be those servants the master finds alert when he comes.” The word “bless” also means happy. Happy are those who are being led by the Spirit of God in expanding the kingdom of heaven when Jesus returns.
To have an expectation of the return of Jesus before the Great Tribulation gives a person increased alertness in preparedness by accomplishing His purposes designed for them according to Scripture to bring people to a saving knowledge of Jesus Christ.
Full Preterism says that Jesus already has returned and is reigning spiritually, Satan is bound in the bottomless pit, and we are living in the New Earth. Preterism is a belief that deceives the believers in Christ by taking away the hope of their redemption seen in the future return of Jesus Christ.
28 But when these things begin to take place, stand up and lift up your heads, because your redemption is near.”
Click on the link: Preterism, is it Biblical? for more on the topic.