The Creation Days
n“In the hundreds of other cases in the Old Testament where yom stands in conjunction with an ordinal number (first, second, third, etc.), e.g. Exodus 12:15; 24:16; Leviticus 12:3, it never means anything other than a normal, literal day.”
Robert L. Reymond, Ph.D., A New Systematic Theology of the Christian Faith, 1998, p. 393.