Romans 3:3-4 For what if some did not believe? Will their unbelief make the assurance of God ineffective?

ACV⁽ⁱ⁾ ³ For what if some did not believe? Will their unbelief make the assurance of God ineffective? ⁴ May it not happen! But let it come to pass God is true, but every man a liar, as it is written, That thou may ever be justified in thy words, and may prevail when thou are criticized.