Romans 10:10.
Belief must be of the heart as well as head.
AND this is the record, that God hath given to us eternal life, and this life is in His Son.
I John 5:11.
EXAMINE yourselves, whether ye be in the faith.
II Corinthians 13:5.
AND this is life eternal, that they might know thee the only true God, and Jesus Christ, whom thou hast sent.
John 17:3.
[Giving.
(Systematically) ONE TENTH of your income.]
God commands one tenth.