(a) A person commits an offense if, with intent to deceive and with knowledge of the statement's meaning:
(1) he makes a false statement under oath or swears to the truth of a false statement previously made and the statement is required or authorized by law to be made under oath; or
(2) he makes a false unsworn declaration under Chapter 132, Civil Practice and Remedies Code.
(b) An offense under this section is a Class A misdemeanor.