Leaving out part of the truth is a lie of omission to cause the hearer to think something different than what is the truth. We do not have to speak a lie for the story to be a lie. All we have to do is leave out the portion we don't want you to believe to make a story become a lie.
In other words, a half-truth is a whole lie!
Ananias led Peter to believe they were bringing their full portion from the sale of the land when they really held back part of it pretending something that was not true. Sadly he was killed by God for this omission and so was his wife when she came in later and did the same thing her husband did.
Acts 5:1-4
Fate of Ananias and Sapphira
5 But a man named Ananias, with his wife Sapphira, sold a piece of property,
2 and kept back some of the proceeds for himself, with his wife’s full knowledge, and bringing a portion of it, he laid it at the apostles’ feet.
3 But Peter said, “Ananias, why has Satan filled your heart to lie to the Holy Spirit and to keep back some of the proceeds of the land? 4 While it remained unsold, did it not remain your own? And after it was sold, was it not under your control? Why is it that you have conceived this deed in your heart? You have not lied to men, but to God.”
Those who lie without conviction over it are always seen by God even if they got away with it with men.