It may be weird to think of "truth" being a person, but that is the claim of the gospel. What changes for us when we embrace the fact that Jesus is the truth? Three possibilities are:
1. The way we read scripture - When we acknowledge the Jesus is the truth, we read scripture to understand Jesus' character and learn more about him, rather than reading scripture to try and support arguments.
2. We reflect on, if what we hold to be true, makes us more like Jesus or less like Jesus. If we believe Jesus is the truth, then what we profess to be true should reflect Jesus' character and our behavior will align with Jesus'.
3. We are open to those who would challenge our idea of truth - If Jesus is the truth, then "truth" doesn't rest on our ability (or inability) to defend it. It rests on who Jesus is. So, we can be witnesses to Jesus, the truth, and we can point people to Jesus, trusting that the truth will stand. This takes a burden off of us and allows us to fill our role as witnesses to the truth.
What else do you think might change if we embrace the fact that Jesus is the truth?