King James Version (KJV)
And Saul built an altar unto the LORD: the same was the first altar that he built unto the LORD. {the same...: Heb. that altar he began to build unto the LORD}
Modern English
Saul built an altar to Yahweh. This was the first altar that he built to Yahweh.
Hebrew
וַיִּ֧בֶן שָׁא֛וּל מִזְבֵּ֖חַ לַֽיהוָ֑ה אֹת֣וֹ הֵחֵ֔ל לִבְנ֥וֹת מִזְבֵּ֖חַ לַֽיהוָֽה׃
vayiben shaʾvl mizbeḥa layhvah ʾotvo heḥel libnvot mizbeḥa layhvah