'Softly' in the Bible

Then Jael Heber's wife took a tent-pin, and took a hammer in her hand, and went softly unto him, and smote the pin into his temples, and it pierced through into the ground; for he was in a deep sleep; so he swooned and died.

And when Boaz had eaten and drunk, and his heart was merry, he went to lie down at the end of the heap of grain: and she came softly, and uncovered his feet, and laid her down.

And it came to pass, when Ahab heard those words, that he rent his clothes, and put sackcloth upon his flesh, and fasted, and lay in sackcloth, and went softly.

Forasmuch as this people have refused the waters of Shiloah that go softly, and rejoice in Rezin and Remaliah's son;

What shall I say? he hath both spoken unto me, and himself hath done it: I shall go softly all my years because of the bitterness of my soul.

And when the south wind blew softly, supposing that they had obtained their purpose, they weighed anchor and sailed along Crete, close in shore.