'Certainly' in the Bible

but thou shalt open thy hand bountifully unto him, and shalt certainly lend him on pledge what is sufficient for his need, in that which he lacketh.

thou shalt certainly furnish him from thy sheep, and out of thy floor, and out of thy winepress: of what Jehovah thy God hath blessed thee with shalt thou give unto him.

When thou vowest a vow to Jehovah thy God, thou shalt not delay to perform it; for Jehovah thy God will certainly require it of thee, and it shall be sin in thee.