“The Spirit is God’s guarantee that he will give us the inheritance he promised and that he has purchased us to be his own people. He did this so we would praise and glorify him” (Ephesians 1:14, NLT).
Most things we buy come with a guarantee. Some are touted as total satisfaction or your money back. Others are limited. A lot of them have fine print which can translate as “good luck getting anything from us.” I’ve rarely used a product guarantee, but especially for the larger ticket items, it’s nice to have.
Some wonder how they can be sure God will do what he says. He knew we’d be skeptical so one of the reasons he sent the Holy Spirit to live in the hearts of anyone who accepts his grace and forgiveness was to help us trust him. The Spirit, who is God, testifies to our spirits, just as in a court of law, to the truth of Jesus’ life, death and resurrection and the certainty of the inheritance we receive in him. We all have doubts from time to time, but when we do, the Holy Spirit is there to reassure us God’s guarantee is made of gold and has no fine print.