"Jesus said to him, 'I am the way, the truth, and the life. No one comes to the Father except through Me.'"
Dictionary.com defines truth as:
1. the true or actual state of a matter: He tried to find out the truth.
2. conformity with fact or reality; verity: the truth of a statement.
3. a verified or indisputable fact, proposition, principle, or the like: mathematical truths.
4. the state or character of being true.
5. actuality or actual existence.
If we are to be like Jesus, then we must be truthful. And yet, how many times do we tell "white" lies? We can justify it to ourselves by saying that it's not hurting anyone, but do you really know that.
My husband and I decided early on in our parenting that Santa Claus, the Easter Bunny, and the tooth fairy were not going to be perpetrated as real people to our children. Those are just little white lies that don't hurt anyone right? But what if your child thinks to himself, "If Mom/Dad said their was a Santa and there's not, then maybe there's not a Jesus either."? That has eternal consequences.
What is your response (and mine) to the question, "How are you?" Mine is usually, "Fine," or "Good" even when I'm not. But then the person asking typically doesn't care anyway, right? Why not just answer truthfully? "I'm a bit tired," or "I've had a rough week," or even "It's been great." There's no need to expound, but there's no reason to put on the mask of perfection when that's just not the case.
Life is short. Don't waste it being untruthful. God despises liars. Don't let him think of you that way.