From BiblePortal Wikipedia

King James Dictionary [1]

Considering, ppr. Fixing the mind on meditating on pondering viewing with care and attention deliberating on.

Note. We have a peculiar use of this word, which may be a corruption for considered, or which may be a deviation from analogy by an insensible change in the structure of the phrase. It is not possible for us to act otherwise, considering the weakness of our nature. As a participle, this word must here refer to us, or the sentence cannot be resolved by any rule of English syntax. It should be correct to say, It is not possible for us to act otherwise, the weakness of our nature being considered or We, considering the weakness of our nature, cannot act otherwise. But the latter phrase is better grammar, than it is sense. We use other participles in like manner as, Allowing for tare, the weight could not be more than a hundred pounds. These and similar phrases are anomalous. But considering is no more a kind of conjunction, in such phrases, than it is a noun.

Considering, n. The act of deliberating, or carefully attending to hesitation as, many mazed considerings.

Webster's Dictionary [2]

(p. pr. & vb. n.) of Consider