'Approach' in the Bible

‘No one shall approach any blood relative of his to uncover nakedness (have intimate relations). I am the Lord.

You shall not uncover the nakedness of your father’s brother’s wife; you shall not approach his wife; she is your aunt.

For no man who has a defect shall approach [God’s altar as a priest]: no man who is blind or lame, or who has a disfigured face, or any deformed limb,