'Neither' in the Bible

Every good gift and every perfect gift is from above, coming down from the Father of lights, with whom can be no variation, neither shadow that is cast by turning.

Can a fig tree, my brethren, yield olives, or a vine figs? Neither can'salt water yield sweet.

But above all things, my brethren, swear not, neither by the heaven, nor by the earth, nor by any other oath: but let your yea be yea, and your nay, nay; that ye fall not under judgment.