Why are God and Christ so worthy of our praise and gratitude? The evidence is compiled in scripture and the daily lives of billions of individuals who have or will live on the earth. Some of those scriptural examples include:
For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life. - John 3:16
One of the Book of Mormon scriptures that parallels this one is 2 Nephi 26:24 and gives the same message with more beautiful wording:
He doeth not anything save it be for the benefit of the world; for he loveth the world, even that he layeth down his own life that he may draw all men unto him. Wherefore, he commandeth none that they shall not partake of his salvation.
If these scriptures are true, and I believe they are, they are true for all people:
…he doeth that which is good among the children of men; and he doeth nothing save it be plain unto the children of men; and he inviteth them all to come unto him and partake of his goodness; and he denieth now that come unto him, black and white, bond and free, male and female; and he remembereth the heathen; and all are alike unto God, both Jew and Gentile. - 2 Nephi 26:33
Let us come unto this God and Savior who invite all to come unto him.