Scripture: Srimad Bhagavatam 8.20.4

Translation:

There is nothing more sinful than untruthfulness. Because of this, mother earth once said, “I
can bear any heavy thing except a person who is a liar.

Purport by His Divine Grace Swami Srila Prabhupada:

On the surface of the earth there are many great mountains and oceans that are very heavy,
and mother earth has no difficulty carrying them. But she feels very much overburdened when
she carries even one person who is a liar. It is said that in Kali yuga lying is a common affair:
mayaiva vyavaharike (SB 12.2.3). Even in the most common dealings, people are accustomed
to speaking so many lies. No one is free from the sinful reactions of speaking lies. Under the
circumstances, one can just imagine how this has overburdened the earth, and indeed the
entire universe.